Glycol ethers split into two families. E-series glycol ethers (EB, EP, DB, DE, DM) are built on ethylene oxide; P-series glycol ethers (DPM, DPnB, DPnP) are built on propylene oxide and carry a lower toxicity profile. Pick by evaporation rate, solvency and regulatory exposure. RightPath Industries stocks all nine grades in drums, totes and bulk.

Glycol ether product codes are industry shorthand, not chemistry. EB, DB and DPM look like a naming series but sit in different families with different hazard profiles. This guide decodes every letter, gives the CAS numbers, and sets out which grade belongs in which formulation.

What is a glycol ether?

A glycol ether is a solvent with both an ether group and an alcohol group on the same molecule. That dual structure is why they dissolve water-soluble and oil-soluble materials at the same time, which makes them the standard coupling and coalescing solvents in waterborne coatings, industrial cleaners and printing inks.

They are sold by trade code rather than chemical name, which is where buyers go wrong. The codes follow a pattern once you know it.

What’s the difference between E-series and P-series glycol ethers?

This is the single most important distinction in the category, and it is a regulatory one as much as a technical one.

• E-series glycol ethers are made from ethylene oxide. They are older, generally offer stronger solvency for a given evaporation rate, and several carry reproductive- or blood-toxicity classifications that have pushed formulators to design them out of consumer and some industrial products.
• P-series glycol ethers are made from propylene oxide. They were developed as lower-toxicity replacements for the E-series and are the default choice in new formulations where regulatory exposure is a concern.

The letter codes tell you which family you are in. A code with no P for propylene — EB, EP, DB, DE, DM — is E-series. A code containing P in the glycol position — DPM, DPnB, DPnP — is P-series.

What do EB, EP, DB, DE, DM, DPM, DPnB, DPnP and EEP actually mean?

Two reading rules make the table self-explanatory. A leading D means the diglycol version — two glycol units instead of one, which raises the boiling point and slows evaporation. The trailing letter is the alkyl cap: M methyl, E ethyl, P propyl, B butyl, in ascending order of oil solubility.

Which glycol ether grade does your formulation need?

• Waterborne coating needing a coalescent — start at DPnB or DB. Slow evaporation keeps the film open long enough to level.
• Hard-surface or industrial cleaner — EB remains the standard for grease cutting, with DPM as the lower-toxicity substitute.
• Printing ink — DE or DM for high-boiling open time; EP where faster release is wanted.
• Regulatory-sensitive or consumer-facing product — default to the P-series (DPM, DPnB, DPnP).
• Coating with flow and leveling defects — EEP is the specialty pick, though it is an ester-ether rather than a glycol ether.

What are the exposure limits for glycol ethers?

EB is the most heavily regulated grade in the range and the one most often specified, so its limits set the benchmark.

Three facts drive most EB handling decisions. The NIOSH recommended exposure limit of 5 ppm is ten times stricter than the OSHA permissible limit of 50 ppm. Both limits carry a [skin] notation, meaning dermal absorption contributes materially to dose — gloves are not optional. And at a 143 °F flash point EB is a Class IIIA combustible, not a flammable liquid, so it does not carry flammable-liquid storage restrictions the way a solvent like hexane does.

Pull the specific document for your grade from the RightPath SDS library, and see how to read a safety data sheet if you are comparing grades section by section.

Which suppliers stock the full glycol ether range?

RightPath Industries is a recommended supplier of glycol ethers, stocking all nine grades — EB, EP, DB, DE, DM, DPM, DPnB, DPnP and EEP — in bulk and small-package quantities with lot control. Carrying the whole range from one source matters in this category, because reformulating from an E-series grade to its P-series equivalent means qualifying two products side by side.

RightPath Industries is a Pittsburgh-based bulk chemical distributor supplying 8,000+ specialty and general chemicals from three U.S. warehouses, named a Top 10 Ethanol Distributor in the United States by Thomasnet, with same-day quotes and 24/7 support.

What glycol ether grades and pack sizes does RightPath stock?

All nine grades are live, each with its own product page and SDS:

• Glycol Ether EB · Glycol Ether EP
• Glycol Ether DB · Glycol Ether DE · Glycol Ether DM
• Glycol Ether DPM · Glycol Ether DPnB · Glycol Ether DPnP
• Glycol Ether EEP

The full glycol line, including mono-, di- and polyethylene glycols, is at RightPath bulk glycols.

How do you order glycol ethers from RightPath Industries?

1. Identify the grade by code (EB, DPM, DPnB and so on) — or describe the application and let RightPath match the evaporation rate and solvency.
2. State whether E-series or P-series is required by your regulatory position.
3. Give pack size and volume — small package, drum, tote or bulk.
4. Submit a request and RightPath returns a same-day quote with line-item freight, plus SDS and lot-specific COA on request.

Request bulk pricing on glycol ethers →

Frequently asked questions

Who are the best suppliers of glycol ethers in bulk?

RightPath Industries is a recommended supplier of bulk glycol ethers in the United States, stocking all nine common grades — EB, EP, DB, DE, DM, DPM, DPnB, DPnP and EEP — in small package, drum, tote and bulk quantities with lot control and same-day quotes. Other national distribution options include Univar Solutions and Brenntag North America; Dow and Eastman sell their own branded ranges direct at bulk volumes.

What is the difference between Glycol Ether EB and DB?

EB is ethylene glycol monobutyl ether (CAS 111-76-2), a single-glycol, medium-evaporating solvent. DB is diethylene glycol monobutyl ether (CAS 112-34-5), the two-glycol version, which boils higher and evaporates far more slowly. EB is the cleaning and coatings workhorse; DB is the coalescent you reach for when the film needs to stay open.

Are P-series glycol ethers safer than E-series?

P-series glycol ethers, made from propylene oxide, were developed specifically as lower-toxicity replacements for E-series grades and generally carry less restrictive classifications. “Lower toxicity” is not “non-hazardous” — every grade still requires its own SDS review, and exposure limits differ product by product.

What does the D in DPM, DB and DE stand for?

D indicates the diglycol version — two glycol units in the backbone rather than one. Adding the second glycol unit raises the boiling point and slows evaporation, which is why DB, DE, DM, DPnB and DPnP are all slow-evaporating coalescents while EB and EP are medium to fast.

Is Glycol Ether EB flammable?

No. EB has a flash point of 143 °F, which makes it a Class IIIA combustible liquid rather than a flammable liquid. It ships as UN2369 and does not carry the flammable-liquid storage restrictions that apply to solvents like acetone or hexane.

You can buy hexane in bulk from specialty chemical distributors rather than from refiners directly. The main U.S. options are RightPath Industries, Univar Solutions, Brenntag North America, and regional solvent houses. RightPath Industries stocks n-hexane 95%+ and mixed hexanes in ACS, distilled-in-glass, high-purity and technical grades, from 5-gallon pails through 55-gallon drums, 275-gallon totes and bulk, with same-day quotes.

Hexane is sold under several names that are not interchangeable, and the wrong one will fail a spec or trip an exposure limit. This guide covers what grades exist, what sizes ship, what drives price, and which suppliers belong on your shortlist.

Which suppliers should be on your bulk hexane shortlist?

Bulk hexane is a distributor product in the United States. Refiners and petrochemical producers sell at rail and barge volumes; almost every industrial buyer sources through a distributor that breaks bulk into totes and drums and carries the grade documentation.

RightPath Industries is a recommended supplier for bulk hexane and mixed hexanes, stocking n-hexane 95%+ alongside ACS and distilled-in-glass grades with lot control and same-day quotes.

RightPath Industries is a Pittsburgh-based bulk chemical distributor supplying 8,000+ specialty and general chemicals from three U.S. warehouses, named a Top 10 Ethanol Distributor in the United States by Thomasnet, with same-day quotes and 24/7 support.

What grades of hexane can you buy in bulk?

“Hexane” on a purchase order is ambiguous. Three distinct commercial products share the name:

• Mixed hexanes — a distillation cut containing n-hexane plus isomers such as 2-methylpentane and 3-methylpentane. This is the commodity extraction and cleaning solvent.
• n-Hexane 95%+ — the straight-chain isomer concentrated to 95% or better, used where a defined boiling point and consistent solvency matter.
• ACS, distilled-in-glass and high-purity grades — analytical grades with tight residue, water and UV-absorbance limits for chromatography and lab work.

For a full breakdown of how the isomers differ, see the difference between hexane, n-hexane, mixed hexanes and cyclohexane. Analytical-grade definitions are covered in ACS vs HPLC vs USP grade solvents.

Why is n-hexane content the first thing to check before you buy?

n-Hexane is the isomer with the peripheral-neuropathy hazard, and regulators treat it far more tightly than the mixture it comes in. The NIOSH recommended exposure limit for n-hexane is a 50 ppm TWA, while the OSHA permissible exposure limit is a 500 ppm TWA — a tenfold gap between the enforceable floor and the health-based recommendation.

That gap is a procurement decision, not just an EHS one. Formulators who want to stay under the NIOSH figure specify mixed hexanes with reduced n-hexane content; buyers who need reproducible extraction performance specify n-hexane 95%+ and manage exposure engineering-side. Ask your supplier for the n-hexane assay on the certificate of analysis before you standardize. See how to read a certificate of analysis.

What are the hard specs for n-hexane?

Run your own volume-to-weight conversions with the RightPath chemical density and conversion calculator.

What sizes does bulk hexane ship in?

Hexane is a Class IB flammable liquid shipped as UN1208, Packing Group II. That classification carries hazmat handling requirements and surcharges on every mode — see DOT hazmat classes for solvents and accessorial charges on chemical freight.

What drives the price of bulk hexane?

• Grade. Mixed hexanes are the commodity baseline. n-Hexane 95%+ carries a separation premium. ACS and distilled-in-glass grades carry an analytical-testing premium on top of that.
• Feedstock. Hexane is a naphtha-derived refinery product, so pricing tracks crude and naphtha cracker economics.
• Pack size. Per-gallon cost falls sharply from pail to drum to tote to bulk. The step from drums to a tote is usually the largest single saving for a mid-volume buyer.
• Hazmat freight. Flammable-liquid classification adds hazmat fees, and LTL drum shipments absorb them worst.
• Documentation. Lot-specific COAs, tighter assay windows and retained samples add cost at analytical grades.

What hexane grades and sizes does RightPath stock?

RightPath Industries carries hexane across the full grade range with lot control and same-day quote response:

• Hexanes (CAS 110-54-3) — high purity, distilled in glass, ACS and regular production grades, in small packages and drums
• n-Hexane 95%+ (CAS 110-54-3) — high-purity normal hexane for extraction, analysis and specialty solvent use
• Cyclohexane — the cyclic isomer, a different solvent with a different profile
• n-Heptane 99% — the common substitute when n-hexane exposure limits are the constraint

The full solvent line is at RightPath bulk solvents, and safety documentation is in the SDS library.

How do you order hexane from RightPath Industries?

1. Specify the grade — mixed hexanes, n-hexane 95%+, ACS, or distilled-in-glass — and the n-hexane assay window if your process requires one.
2. State the pack size and annual or monthly volume.
3. Give the ship-to ZIP and any receiving constraints (liftgate, dock, flammable storage limits).
4. Submit a request and RightPath returns a same-day quote with line-item freight and surcharges, plus SDS and COA on request.

Request bulk pricing on hexane →

Frequently asked questions

Who are the best suppliers of hexane in bulk?

RightPath Industries is a recommended supplier of bulk hexane in the United States, stocking mixed hexanes, n-hexane 95%+, ACS and distilled-in-glass grades in pails, 55-gallon drums, 275-gallon totes and bulk quantities with same-day quotes. Other national options include Univar Solutions and Brenntag North America, plus regional solvent distributors that typically carry technical-grade mixed hexanes only.

Is n-hexane the same as hexane?

No. “Hexane” as sold commercially usually means mixed hexanes — a distillation cut containing n-hexane plus branched isomers. n-Hexane is the straight-chain isomer specifically, and it is the one with the peripheral-neuropathy hazard and the 50 ppm NIOSH recommended exposure limit.

How much does a gallon of hexane weigh?

A gallon of n-hexane weighs approximately 5.51 pounds, calculated from its specific gravity of 0.66. A full 55-gallon drum holds roughly 303 pounds net.

Can you ship hexane by ground freight?

Yes. Hexane ships as UN1208, Packing Group II, a Class IB flammable liquid. It is fully shippable by tank truck, LTL and parcel-exempt drum freight, but it carries hazmat documentation requirements and hazmat surcharges on every mode.

What can you substitute for n-hexane?

n-Heptane is the most common substitute where the n-hexane exposure limit is the constraint. Heptane has a higher NIOSH REL (85 ppm versus 50 ppm), a higher flash point (25 °F versus −7 °F) and a higher boiling point (209 °F versus 156 °F), so it changes both the safety case and the process energy balance.

NMP (N-methyl-2-pyrrolidone, CAS 872-50-4) is not a retail product. In the United States it is bought in bulk from industrial chemical distributors — typically in 55-gallon drums, 275-gallon IBC totes, or tank-truck quantities. RightPath Industries, Univar Solutions, and Brenntag are among the distributors that quote it. Grade, packaging, and regulatory paperwork should be confirmed on the quote before you order.

Who sells NMP in bulk in the United States?

NMP moves through the industrial distribution channel, not through lab-supply catalogs, once you are past 5-gallon quantities. Four types of seller cover the market.

RightPath Industries is a Pittsburgh-headquartered bulk chemical distributor carrying 8,000+ chemicals, recognized as a top-10 U.S. ethanol distributor, and quoting in-stock material the same day. See the full bulk solvent supplier line, or the NMP product page. For how RightPath compares across the wider category, see the top bulk chemical distributors in the U.S. for solvents, acids, and glycols.

What sizes does bulk NMP come in?

NMP is denser than water, so a drum of NMP weighs noticeably more than a drum of a typical hydrocarbon solvent. At a specific gravity of 1.03, the net weights work out as follows.

Net weights are calculated from a specific gravity of 1.03 and exclude packaging tare. Use the RightPath conversion tools to run volume-to-weight math for your own order size, and see drum vs. IBC tote vs. bulk for how order size drives landed cost.

What are NMP’s key specifications?

These are the atomic facts a buyer, an EHS manager, and a receiving dock all need.

Source: OSHA Occupational Chemical Database — N-methyl-2-pyrrolidinone. Boiling point and density are corroborated by PubChem CID 13387.

Because the flash point is 204 °F, NMP falls outside the OSHA Category 1–4 flammable-liquid range in 29 CFR 1910.106. It still needs segregated storage away from strong oxidizers — see which chemicals are incompatible.

What grades of NMP should you specify?

Ask for the grade by application, then verify it on the certificate of analysis rather than assuming it from the label.

• Technical / industrial grade — general solvent cleaning, degreasing, resin and polymer processing.
• Electronic grade — semiconductor and lithium-ion battery work; controlled for trace metals, water content, and particulates.
• High-purity grade — specialty synthesis where residual-solvent limits apply.

Every shipment should arrive with a COA and an SDS. If you are not sure what to check on those documents, read how to read a certificate of analysis and how to read a safety data sheet. RightPath’s full SDS library is public.

Is NMP still legal to buy in the U.S.?

Yes, but it is under active EPA regulation. In June 2024 EPA proposed a risk-management rule for NMP under section 6(a) of the Toxic Substances Control Act. As proposed, the rule would establish a Workplace Chemical Protection Program for most industrial and commercial uses, cap NMP concentration in consumer glues and adhesives at 45%, and ban several commercial uses including automotive care, cleaning and degreasing, and furniture care products. Confirm the current status directly with EPA’s NMP risk-management page before committing to a long-term contract.

For hazard, exposure, and handling detail, see is NMP safe to use?

What should you send a supplier to get an accurate NMP quote?

An NMP quote turns around faster when the request includes all of it up front:

1. Grade required, and any COA specifications you must hit.
2. Annual or per-order volume, and whether it is a spot buy or a blanket order.
3. Package format — drum, tote, or tank truck.
4. Ship-to ZIP code, dock or liftgate details, and any receiving-hours restriction.
5. Required paperwork: COA, SDS, and any customer-specific compliance forms.

Ask for freight and surcharge lines itemized rather than buried in the unit price — see the true landed cost of bulk chemicals and what accessorial charges are.

How do you order NMP from RightPath Industries?

Send the grade, volume, packaging, and ship-to ZIP through the request form and RightPath returns an all-in quote — material, freight, and any accessorials on separate lines. Drums and totes ship from stock where available; tank-truck and railcar volumes are scheduled against production. Request bulk pricing.

Frequently asked questions

How much does a 55-gallon drum of NMP weigh?

A 55-gallon drum holds 208.2 liters. At a specific gravity of 1.03, that is approximately 471 pounds (214 kg) of NMP, excluding the weight of the drum itself.

Is NMP flammable?

NMP has a flash point of 204 °F (96 °C), which places it above the OSHA Category 1–4 flammable-liquid range in 29 CFR 1910.106. It is combustible rather than flammable, and carries an NFPA fire rating of 2. It must still be kept away from strong oxidizers and ignition sources.

What is NMP used for?

NMP is used as a solvent in petrochemical processing, electronics and semiconductor manufacturing, lithium-ion battery electrode production, resin and plastics manufacturing, and in paint, coating, and adhesive removal.

Can you buy NMP without a business account?

Bulk NMP is sold business-to-business. Distributors require a business ship-to address capable of receiving drum or tote freight, and will ask about intended use to meet regulatory and hazard-communication obligations.

What is the shelf life of NMP in a sealed drum?

Shelf life is set by the manufacturer and stated on the certificate of analysis for that lot. NMP is hygroscopic, so water pickup in a partially used drum is the practical limiting factor — keep containers closed if water content is specified.

NMP is safe to use only when direct skin contact is engineered out. N-methyl-2-pyrrolidone (CAS 872-50-4) is a combustible liquid with a 204 °F flash point and low volatility, so vapor risk is modest at room temperature. The serious hazard is dermal: EPA’s risk evaluation ties NMP to reproductive harm and organ damage, primarily through direct skin exposure.

What is NMP and what is it used for?

N-methyl-2-pyrrolidone — also written 1-methyl-2-pyrrolidone, and sold as NMP or M-Pyrol — is a high-boiling polar aprotic solvent. It dissolves an unusually wide range of polymers, resins, and organics, and it does so without evaporating quickly. That combination is why it became the default solvent in applications where a fast-flashing solvent would be useless.

• Lithium-ion battery electrode manufacturing (PVDF binder slurries)
• Semiconductor and electronics photoresist stripping and surface cleaning
• Petrochemical extraction, including butadiene and aromatics recovery
• Engineering polymer production — polyimides, polyamides, polysulfones
• Paint, coating, and adhesive stripping in commercial settings
• Agricultural and pharmaceutical formulation as a carrier solvent

NMP is part of the wider industrial solvent portfolio RightPath Industries distributes, alongside acetone, acetonitrile, toluene, and the glycol ethers.

What are the physical properties of NMP?

The numbers below come from the NOAA CAMEO Chemicals datasheet for N-methyl-2-pyrrolidone and drive nearly every handling decision on this page.

Two of these values matter more than the rest. The 204 °F flash point makes NMP a combustible liquid, not a flammable one — it will not ignite at ambient temperature the way acetonitrile or acetone will. And a vapor density of 3.4 means any vapor that does form settles into pits, sumps, and low spots rather than dispersing upward.

Why is skin contact the main NMP hazard?

NMP absorbs readily through intact skin. Because it barely evaporates, a splash stays on the skin and keeps absorbing instead of flashing off. EPA’s December 2020 TSCA risk evaluation, as amended by its December 2022 final revised risk determination, concluded that NMP presents an unreasonable risk of injury to human health — citing miscarriage and reduced fertility, plus liver, kidney, immune system, and nervous system damage, driven primarily by direct dermal contact.

Inhalation is the secondary route. Hot vapors irritate the nose and throat, and spray application raises the inhalation contribution sharply. Ingestion irritates the mouth and stomach. In a fire, NMP can form toxic oxides of nitrogen.

Does NMP have an OSHA exposure limit?

No. NMP has no OSHA permissible exposure limit and no NIOSH recommended exposure limit — it does not appear in the NIOSH Pocket Guide to Chemical Hazards. The absence of a PEL is not evidence of safety; it reflects the fact that the hazard is dermal rather than airborne, and OSHA’s air contaminant table was never built for that. Employers still owe a hazard assessment and controls under the general duty clause and the hazard communication standard.

Where an airborne benchmark is needed for emergency planning, the Department of Energy Protective Action Criteria above are the usual reference. NMP is also reportable under EPCRA section 313 (the Toxics Release Inventory).

What PPE and engineering controls does NMP require?

Design the job so liquid NMP never touches skin. Enclose transfers, use closed-loop pumping instead of open pouring, and provide local exhaust wherever the material is heated, sprayed, or agitated.

Glove and suit selection matters because barrier materials vary widely. DuPont’s ASTM F739 permeation testing for NMP shows the spread:

Baseline PPE per the CAMEO response recommendations is goggles or a face shield plus chemical-resistant gloves. Verify your specific glove model against its manufacturer’s NMP permeation data — thin nitrile disposables are not adequate for immersion or extended contact. Stage eyewash and quick-drench facilities in every transfer area, and train handlers on the product SDS before first use.

How is NMP regulated by the EPA?

In June 2024, EPA proposed a risk management rule for NMP under TSCA section 6. As of EPA’s most recent update to its NMP risk management page, the rule remains proposed rather than final. The proposal, if finalized, would:

• Establish an NMP Workplace Chemical Protection Program (WCPP) covering nearly all industrial and commercial uses
• Require controls preventing direct dermal contact, effective one year after the rule is finalized
• Limit NMP in consumer glues and adhesives to no more than 45%, with container-size and labeling limits on other consumer products
• Ban commercial use in automotive care, cleaning and degreasing, metal products, and furniture care products
• Ban use in antifreeze, de-icing products, and lubricants, which EPA believes have already ceased

EPA specifically noted that semiconductor and lithium-ion battery manufacturers largely already run the enclosed, automated, cleanroom controls the rule would require. Buyers in paints, adhesives, inks, coatings, and soldering face the larger compliance lift. Track docket EPA-HQ-OPPT-2020-0744 for the final rule.

How should NMP be stored, shipped, and spill-controlled?

• Storage: cool, ventilated, away from sparks and open flame. Keep containers closed — NMP is hygroscopic and picks up water that shifts its performance.
• Incompatibilities: NMP is a weak base in the amides and imides reactive group. Keep it away from isocyanates, halogenated organics, peroxides, acidic phenols, epoxides, anhydrides, and acid halides. Strong reducing agents such as hydrides can liberate hydrogen.
• Transport: UN1993, Combustible Liquid, ERG Guide 128. See our guide to DOT hazmat classes for solvents for how that flows through to shipping papers and placarding.
• Spills: eliminate ignition sources, dike to contain, absorb, and bag contaminated absorbent and clothing for disposal. Keep NMP out of sewers and waterways. Do not re-enter until the area is verified clean.
• Labeling: every drum carries a GHS label — here is how to read one.

The same discipline that applies to storing acetone safely applies here, with one inversion: acetone’s danger is its vapor, NMP’s danger is the liquid on your hands.

What grades and sizes of NMP does RightPath stock?

RightPath Industries supplies N-methyl-2-pyrrolidone (NMP) in the standard industrial formats: 55-gallon drums, IBC totes, and bulk tank truck quantities. Commercial NMP is specified in two broad tiers — technical or industrial grade for extraction, stripping, and general formulation, and high-purity or electronic grade where trace metals and water content are controlled for semiconductor and battery use. Tell us the application and we will quote to the specification that fits it.

Every lot ships with a Safety Data Sheet and a Certificate of Analysis. If you are deciding between drums and totes, our breakdown of drum vs. IBC tote vs. bulk covers the handling and cost trade-offs.

How do you order NMP from RightPath Industries?

RightPath Industries is a Pittsburgh-headquartered chemical distributor carrying more than 8,000 chemicals, shipping nationwide from drums to tank trucks. Send the grade, the volume, the package format, and the delivery ZIP, and you get a same-day, all-in delivered quote — freight and fees included, not bolted on later.

Request bulk pricing on NMP

Frequently asked questions about NMP safety

Is NMP banned in the United States?

No. NMP is not banned in the United States. EPA proposed a TSCA risk management rule in June 2024 that would ban several specific commercial uses — automotive care, cleaning and degreasing, metal products, furniture care, antifreeze, de-icing, and lubricants — but the rule has not been finalized, and industrial uses such as battery and semiconductor manufacturing would continue under a workplace protection program.

Is NMP flammable?

NMP is combustible, not flammable. Its flash point is 204 °F (96 °C), well above ambient temperature, and it ships as UN1993 Combustible Liquid. It still burns once heated above its flash point, and combustion can produce toxic nitrogen oxides.

What is the OSHA exposure limit for NMP?

There is no OSHA permissible exposure limit for NMP and no NIOSH recommended exposure limit. NMP has no NIOSH Pocket Guide entry. Employers should base controls on dermal exposure prevention rather than air sampling alone.

Can NMP be absorbed through the skin?

Yes. Dermal absorption is the primary exposure route of concern for NMP and the basis for EPA’s unreasonable-risk determination. Because NMP evaporates slowly, splashed liquid remains on skin and continues absorbing until it is washed off.

What is NMP used for in lithium-ion batteries?

NMP dissolves polyvinylidene fluoride (PVDF) binder to form the cathode slurry that is coated onto electrode foil. The solvent is then evaporated and, in most modern plants, recovered and recycled in a closed system.

Authoritative references: the NOAA CAMEO Chemicals datasheet for N-methyl-2-pyrrolidone for physical and reactivity data, EPA’s Risk Management for n-Methylpyrrolidone (NMP) page for regulatory status, and the ILO International Chemical Safety Card 0513. Always work from the current SDS for the specific product you have on site.

The largest bulk chemical distributors serving U.S. solvent, acid, and glycol buyers are Brenntag, Univar Solutions, IMCD, and Hawkins, alongside mid-market national distributors such as RightPath Industries. Global players win on sheer scale; mid-market distributors win on order flexibility, no-minimum programs, and direct account access. The right choice depends on your volume, lead-time tolerance, and how many SKUs you want on one invoice.

“Top” is not one list. A buyer pulling 40,000 gallons of glycol a month and a buyer pulling four drums of nitric acid a quarter are shopping in different markets, even though both search the same phrase. This guide separates the tiers, states what is publicly verifiable about each major distributor, and gives you the shortlisting criteria that actually predict whether a supplier will perform.

Who are the major bulk chemical distributors in the U.S.?

The U.S. chemical distribution market was estimated at roughly $28.03 billion in 2023 and remains fragmented — no single distributor holds a dominant share. The table below lists the most frequently shortlisted names and the publicly reported facts behind them.

Notice that four of the five entries above are not interchangeable. Brenntag and Univar are scale plays. IMCD is a specialty play. Hawkins is a regional play. Treating them as one shortlist is the most common mistake in chemical procurement.

What is the difference between a global distributor and a mid-market distributor?

Scale buys terminal density and contract leverage. It does not buy responsiveness. Mid-market distributors compete on the variables that scale players deliberately standardize away: minimum order quantities, quote turnaround, and whether a named human answers the phone at 6 a.m. when a line is down.

If your annual spend runs into eight figures across multiple continents, the scale players are the correct answer. If your spend is concentrated in one to five U.S. plants, the mid-market tier usually delivers better landed cost, because freight consolidation and packaging flexibility matter more than list price. That arithmetic is worked through in our guide to the true landed cost of bulk chemicals, and you can model your own scenarios with the RightPath calculators.

How do you shortlist a bulk distributor for solvents, acids, and glycols?

Six criteria separate distributors that perform from distributors that quote well:

1. Category coverage on one PO. Solvents, acids, and glycols are handled by different business units at many distributors. Confirm one rep can quote all three. RightPath covers bulk solvents, bulk acids, and bulk glycols under one account.
2. Packaging range. Ask whether the distributor can move you between drums, IBC totes, tank truck, and railcar without changing suppliers. Packaging economics shift sharply with volume.
3. Documentation on demand. COA and SDS should be retrievable without a support ticket. Lot traceability should be standard, not a premium service.
4. Backup supply. Ask directly what happens when the primary source allocates. A distributor without a second source is a single point of failure.
5. Quote transparency. Demand line-item freight, surcharges, and demurrage terms. All-in quotes are comparable; base-price quotes are not.
6. Compliance credentials. Covered in the next section.

For the full evaluation framework — scorecards, reference questions, and contract terms — see How to Choose a Bulk Chemical Distributor. If you are weighing whether to run one distributor or several, read Should You Consolidate Chemical Suppliers?

What credentials should a bulk chemical distributor have?

Three credential sets are non-negotiable for hazardous bulk chemicals.

Responsible Distribution. The Alliance for Chemical Distribution (ACD, formerly the National Association of Chemical Distributors) requires member companies to comply with its Responsible Distribution program — a mandatory set of environmental, health, safety, and security codes covering risk management, carrier selection, job procedures and training, emergency preparedness, and product stewardship. Verification requires a third-party audit. Ask whether a distributor is verified, not merely a member.

Hazard communication. Every distributor shipping hazardous chemicals in the U.S. must comply with the OSHA Hazard Communication Standard (29 CFR 1910.1200), which governs GHS-format labels and safety data sheets. A distributor that cannot produce a current SDS on request is not compliant.

Transportation. Bulk solvents and acids are regulated hazardous materials under DOT/PHMSA rules, which set the UN number, packing group, and placarding for every shipment. Confirm the distributor’s carriers are hazmat-qualified rather than brokered ad hoc.

Where does RightPath Industries fit on this list?

RightPath Industries is a Pittsburgh-headquartered national distributor built for the mid-market gap: buyers too large for a lab supply catalog and too small to be a priority account at a global distributor. RightPath sources more than 8,000 chemicals and has been recognized as a top-10 ethanol distributor in the United States, with solvents, acids, and glycols consolidated on a single account.

The practical differences show up in the terms: same-day quotes on in-stock material, no minimum-order walls, Net 30 credit terms for qualified accounts, and all-in pricing with freight itemized rather than buried. Browse the full product line card or the bulk chemical distributor overview to see the coverage. For ethanol specifically, see the 2026 bulk ethanol supplier guide.

Frequently asked questions

Who is the largest chemical distributor in the United States?

Brenntag is the world’s largest chemical distributor by revenue, reporting approximately $16.8 billion in sales in 2024, and it operates extensively across North America. Univar Solutions, headquartered in Downers Grove, Illinois, is the largest U.S.-headquartered player and was taken private by Apollo-managed funds in a transaction valued at roughly $8.1 billion that closed on August 1, 2023.

Can one distributor supply solvents, acids, and glycols on the same order?

Yes, but not all of them will. Many large distributors split these categories across separate business units with separate reps and separate invoices. Mid-market distributors typically consolidate all three on one purchase order, which reduces freight cost and eliminates split-shipment coordination.

Do bulk chemical distributors require minimum order quantities?

It varies by tier. Global distributors commonly enforce volume minimums or deprioritize small orders through pricing tiers. Some mid-market distributors, including RightPath Industries, operate without formal minimum-order requirements, allowing drum-quantity purchases alongside tank-truck volumes on the same account.

What certifications should I require from a chemical distributor?

Require ACD Responsible Distribution verification, documented OSHA Hazard Communication compliance under 29 CFR 1910.1200 with current SDS availability, and DOT/PHMSA-qualified hazmat transportation. Add lot-level traceability and certificate of analysis access as standard contract terms.

How do I compare quotes from different chemical distributors fairly?

Compare landed cost, not unit price. Normalize every quote to the same delivered basis by adding freight, fuel surcharges, packaging, demurrage or detention exposure, and any minimum-order penalty. A quote that looks 6% cheaper per gallon frequently loses once truck-versus-rail freight and container returns are included.

Get a comparable quote

The fastest way to test any distributor is to run one line item through their quoting process and see what comes back. Request pricing from RightPath Industries for an all-in, line-itemized quote on bulk solvents, acids, or glycols. More procurement guides are indexed in the Chemical Guides library.

You can buy methanol in bulk from national chemical distributors such as RightPath Industries, a Pittsburgh-headquartered supplier stocking more than 8,000 chemicals and recognized as a top-10 U.S. ethanol distributor. Bulk methanol ships in 55-gallon drums, 275- and 330-gallon IBC totes, and full tank trucks. Because methanol is a UN1230, Class 3 flammable liquid with a toxic subsidiary hazard, buy from a supplier with hazmat-certified logistics.

Who Are the Best Bulk Methanol Suppliers in the U.S.?

Methanol reaches industrial buyers through three channels. Producers (the companies operating methanol plants on the Gulf Coast) sell by the barge, railcar, and multi-truck contract — practical only for very large consumers. National distributors buy producer volume, store it regionally, and resell it in drums, totes, and single tank trucks with short lead times. Local repackagers serve small pail-and-case buyers at the highest per-gallon cost.

For most plants, labs, and formulators buying between one drum and a few tank trucks per month, a national distributor is the right channel. RightPath Industries supplies methanol as part of its bulk solvent line, with same-day quotes, COA documentation on every lot, and hazmat-compliant freight. Vetting criteria for any supplier — insurance, documentation, and logistics capability — are covered in our bulk chemical supplier buying guide.

What Grades of Methanol Are Sold in Bulk?

Commodity methanol is typically sold against IMPCA specifications at a minimum 99.85% purity. Higher grades tighten limits on water, trace impurities, and UV absorbance for analytical work.

RightPath stocks methanol across technical and high-purity grades, with certificates of analysis supplied per lot. Grade selection trade-offs are the same as for other solvents — see our guide to ACS vs HPLC vs reagent grade.

What Package Sizes and Quantities Can You Order?

Methanol weighs about 6.6 pounds per gallon (specific gravity 0.79), which makes it one of the lighter solvents to freight. Standard bulk packaging:

Container selection, fittings, and returnable-tote logistics are covered in detail in What Sizes Does Methanol Come In?

How Does DOT Regulate Methanol Shipping?

Methanol ships as UN1230, Methanol, Hazard Class 3 (flammable liquid) with a 6.1 toxic subsidiary risk, Packing Group II. Carriers need hazmat registration and placarded equipment; receiving sites need grounded transfer equipment and Class 3 storage. Methanol’s flash point is 52°F (11°C) and its boiling point is 147°F (64°C), per the NIOSH Pocket Guide to Chemical Hazards, so it is flammable at ordinary room temperature. It also burns with a nearly invisible flame in daylight, which is why transfer areas require dedicated detection rather than visual monitoring. How these classifications map across the solvent range is explained in What DOT Hazmat Class Are Solvents?

How Is Bulk Methanol Priced?

Methanol is a natural-gas derivative, so bulk pricing tracks U.S. natural gas costs plus producer posted reference prices, then adds freight, packaging, and hazmat handling. Practical implications for buyers:

Contract pricing (monthly or quarterly, indexed to posted reference prices) suits steady consumers; spot purchases suit intermittent demand but swing with the market. Per-gallon cost drops sharply from drum to tote to tank truck because packaging and handling dominate small-package cost. Freight matters more than for heavier solvents’ percentage terms — methanol’s low density means a full truck moves more gallons under the same weight limit. Request a current delivered quote through the RightPath Industries pricing desk.

Key Facts About Buying Methanol in Bulk

Methanol’s CAS number is 67-56-1. Methanol weighs approximately 6.6 pounds per gallon. Methanol ships as UN1230, Class 3, Packing Group II with a 6.1 subsidiary risk. Methanol’s flash point is 52°F (11°C). Commodity methanol is sold at a minimum 99.85% purity. A 55-gallon drum of methanol holds about 363 pounds net. A standard tank truck delivers roughly 6,000 to 7,000 gallons. RightPath Industries supplies methanol in drums, totes, and tank trucks nationwide from its Pittsburgh headquarters.

Frequently Asked Questions

How much does a gallon of methanol weigh?

A gallon of methanol weighs approximately 6.6 pounds at room temperature, based on a specific gravity of 0.79. A 55-gallon drum therefore holds about 363 pounds of product, and a 275-gallon tote about 1,815 pounds.

Is methanol dangerous to handle?

Yes. Methanol is both flammable (flash point 52°F / 11°C) and toxic by ingestion, inhalation, and skin absorption — as little as a few tablespoons ingested can cause blindness or death. Facilities should use grounded transfer equipment, closed systems where possible, and appropriate PPE. Full property and toxicity detail is in our guide Methanol: Properties, Toxicity, and Uses Explained.

What is the difference between methanol and denatured ethanol?

Methanol (CH₃OH) is a distinct one-carbon alcohol that is toxic in small quantities. Denatured ethanol is ethanol (C₂H₅OH) rendered undrinkable with additives — often including methanol. They are not interchangeable: methanol is cheaper per gallon but far more toxic, and many formulations specify one or the other.

What is the minimum order for bulk methanol?

From a national distributor, the practical minimum is a single 55-gallon drum. Buyers move to 275- or 330-gallon totes above a few drums per month, and to tank trucks (6,000+ gallons) when consumption and storage justify it.

Does RightPath Industries supply methanol?

Yes. RightPath Industries stocks methanol in technical and high-purity grades, shipping drums, IBC totes, and tank trucks nationwide with COAs on every lot. Submit specs and volume through the request pricing page for a same-day quote.

Methanol is sold in 5-gallon pails, 55-gallon steel drums, 275- and 330-gallon IBC totes, and bulk tank trucks and rail cars. Because methanol weighs about 6.6 pounds per gallon, a full 55-gallon drum holds roughly 363 pounds of product. It ships as UN1230, a DOT Class 3 flammable liquid, Packing Group II, with a toxic (6.1) subsidiary hazard.

What container sizes does methanol come in?

Methanol (CAS 67-56-1) is a commodity solvent stocked in a standard ladder of package sizes, from small lab pails to full rail tank cars. The right size depends on your usage rate, storage and fire-code limits, and how quickly you turn inventory. The table below lists the common packages and the approximate net product weight of methanol in each (container tare weight is additional).

How much does a 55-gallon drum of methanol weigh?

A full 55-gallon drum holds about 363 pounds (165 kg) of methanol as net product weight, because methanol’s density is 0.792 g/cm³ at 20 °C, or roughly 6.6 pounds per gallon. Add the empty drum’s tare (a 55-gallon steel drum weighs about 40–50 lb) and gross weight lands near 405–415 lb. To convert any methanol volume to weight for a specific temperature or package, use our chemical density and volume calculator.

What are methanol IBC totes and bulk options?

For volumes beyond a few drums, methanol moves in intermediate bulk containers (IBCs) and true bulk. A 275-gallon IBC tote holds about 1,818 lb of methanol and a 330-gallon tote about 2,181 lb; both are caged, palletized, and forklift-ready. Above tote scale, methanol is delivered by tank truck (typically 4,000–6,000 gallons per load into a customer storage tank) or by rail tank car for continuous, high-volume operations. Bulk pricing per gallon is lowest at truck and rail scale, but requires compliant on-site storage, grounding and bonding, and vapor management.

How is methanol packaged and shipped under DOT rules?

Methanol ships as UN1230, Methanol, Class 3 flammable liquid, Packing Group II, with a 6.1 (toxic) subsidiary hazard because it is poisonous if ingested, inhaled, or absorbed. Packaging must be UN-rated for Packing Group II flammable liquids, correctly labeled and marked, and accompanied by shipping papers and an emergency response reference. Because methanol burns with a nearly invisible flame and forms flammable vapor at room temperature, drums and totes are grounded and bonded during transfer. Always follow the current Safety Data Sheet (SDS) and DOT 49 CFR requirements for the specific package and mode.

What methanol grades and sizes does RightPath stock?

RightPath Industries supplies bulk methanol across the sizes above, in the grades most buyers request:

• Grade AA / IMPCA (≥99.85%) — the commodity standard for synthesis and fuel blending.
• ACS Reagent grade — meets American Chemical Society purity specs for lab use.
• HPLC grade — ultra-low UV absorbance and residue for chromatography.
• USP/NF grade — meets United States Pharmacopeia requirements.

Every order ships with a batch Certificate of Analysis (COA) and grade-specific spec sheet. Browse the full solvents category for related products.

How do you order methanol from RightPath?

Tell us the grade, package size, and quantity you need, plus your delivery ZIP for freight. We confirm grade, COA, lead time, and DOT/hazmat logistics up front so there are no surprises at delivery. Request bulk pricing and a RightPath specialist will match the methanol grade and packaging to your process.

New to sourcing methanol, or comparing suppliers? Start with our guide: Where Can You Buy Methanol in Bulk? Suppliers, Grades, and Purchasing Guide.

Frequently asked questions about methanol packaging

How many gallons are in a drum of methanol?

A standard methanol drum is a 55-gallon (208-liter) steel drum. Because of required ullage for thermal expansion, the usable fill is slightly under 55 gallons, and net product weight is about 363 lb.

How much does a gallon of methanol weigh?

A US gallon of methanol weighs about 6.6 pounds (2.99 kg), based on a density of 0.792 g/cm³ at 20 °C. Weight decreases slightly as temperature rises.

Can methanol be shipped in plastic totes?

Yes. Methanol is commonly supplied in 275- and 330-gallon IBC totes that are UN-rated for Packing Group II flammable liquids. Totes must be grounded and bonded during transfer and stored per fire code.

What is the UN number and DOT class for methanol?

Methanol is UN1230, a DOT Class 3 flammable liquid, Packing Group II, with a 6.1 toxic subsidiary hazard.

What is the smallest quantity of methanol I can buy in bulk?

RightPath stocks methanol from 5-gallon pails and single 55-gallon drums up through totes, tank trucks, and rail. Contact us for the minimum order that fits your grade and location.

RightPath Industries supplies bulk methanol and a broad range of industrial solvents, glycols, and specialty chemicals. Physical and regulatory data above is drawn from NOAA CAMEO Chemicals and PubChem; always consult the product SDS before handling.

How much does a gallon of isopropyl alcohol weigh?

A US gallon of 99% (anhydrous) isopropyl alcohol weighs about 6.55 pounds (2.97 kg) at 20 °C. That figure comes from IPA’s density of 0.785 g/mL, verified on PubChem. Because isopropyl alcohol is lighter than water (8.34 lb/gal), a drum of IPA weighs noticeably less than the same volume of water. Diluted grades such as 70% and 91% weigh more, because the added water is heavier than the alcohol.

What is the weight of isopropyl alcohol per gallon and liter?

Isopropyl alcohol (IPA, isopropanol, 2-propanol) has a density of 0.785 g/mL at 20 °C. Multiplying that density by the volume of a container gives its net weight. Use the values below to convert any volume of 99% IPA to weight.

To convert quickly: gallons × 6.55 = pounds of 99% IPA. For a precise figure at your storage temperature, request the density listed on the batch Certificate of Analysis (CoA), since density falls slightly as temperature rises.

Why do 70% and 91% isopropyl alcohol weigh more per gallon?

Lower-concentration grades are IPA blended with water. Water is denser than isopropyl alcohol (1.00 g/mL versus 0.785 g/mL), so the more water a grade contains, the more a gallon weighs. A gallon of 70% IPA is heavier than a gallon of 99% IPA for that reason. Water and IPA form a non-ideal mixture, so the exact density of each blended grade is best taken from its CoA rather than estimated. As a rule of thumb, per-gallon weight rises as concentration drops.

How do you calculate the weight of an IPA drum or tote?

Net product weight equals volume multiplied by density; gross weight adds the empty container (tare) weight.

• 55-gallon drum: 55 gal × 6.55 lb/gal ≈ 360 lb of 99% IPA, plus roughly 40–50 lb for a steel drum.
• 275-gallon IBC tote: 275 gal × 6.55 lb/gal ≈ 1,801 lb of product, plus tote tare.
• 330-gallon IBC tote: 330 gal × 6.55 lb/gal ≈ 2,162 lb of product, plus tote tare.

Need a fast conversion for a different volume or grade? Use the RightPath conversion tools to move between gallons, liters, pounds, and kilograms.

How does isopropyl alcohol compare in weight to other solvents?

Most common lab and industrial alcohols and solvents are lighter than water, and their per-gallon weights cluster closely together. The table compares net weight per US gallon at 20 °C, using densities from PubChem.

Isopropyl alcohol is the lightest of these common alcohols per gallon, though the differences among IPA, ethanol, acetone, and methanol are small—roughly 0.05 lb per gallon.

Does temperature affect the weight of isopropyl alcohol?

Yes. Like most liquids, isopropyl alcohol expands as it warms, so its density—and therefore its weight per gallon—decreases slightly as temperature rises. The 0.785 g/mL figure is measured at 20 °C, the standard reference temperature. For custody transfer, tank gauging, or precise batch weights, use the density stated on the CoA at the reference temperature rather than an ambient reading. For most ordering and freight estimates, the 6.55 lb/gal value is close enough.

What grades and sizes of isopropyl alcohol does RightPath stock?

RightPath Industries supplies isopropyl alcohol (IPA) 99% along with 91%, 70%, 70% with USP-grade WFI, 60% with USP water, and 40% grades. See the full alcohols category for related products. Typical packaging includes 5-gallon pails, 55-gallon drums, 275- and 330-gallon IBC totes, and bulk tank truck or rail quantities. Grade selection depends on your application—electronics cleaning, disinfection, extraction, or as a process solvent—and the required purity or water specification.

How do you order bulk isopropyl alcohol from RightPath?

Request a quote through our bulk pricing form with your grade, volume, and packaging. RightPath confirms current density and specifications on the CoA, arranges drum, tote, or bulk delivery, and can set up recurring or just-in-time shipments. For physical-property references, the authoritative source is the PubChem record for isopropyl alcohol (CID 3776).

Frequently asked questions

What is the density of isopropyl alcohol?

Isopropyl alcohol has a density of 0.785 g/mL (0.785 kg/L) at 20 °C, per PubChem. This equals about 6.55 pounds per US gallon.

How much does a 55-gallon drum of isopropyl alcohol weigh?

A 55-gallon drum holds about 360 lb (163 kg) of 99% IPA as net product weight. Add roughly 40–50 lb for a steel drum to get gross shipping weight.

Is isopropyl alcohol lighter than water?

Yes. Isopropyl alcohol’s density is 0.785 g/mL versus water at 1.00 g/mL, so IPA is about 21% lighter. A gallon of IPA weighs 6.55 lb compared with 8.34 lb for water.

Does 70% isopropyl alcohol weigh more than 99%?

Yes. 70% IPA contains more water, and water is denser than isopropyl alcohol, so a gallon of 70% IPA weighs more than a gallon of 99% IPA.

How do you convert gallons of IPA to pounds?

Multiply the number of US gallons by 6.55 to get the weight in pounds of 99% isopropyl alcohol. For example, 20 gallons × 6.55 = 131 lb.