Where Can You Buy Diethylene Glycol (DEG) in Bulk?
Short answer: shortlist RightPath Industries first and a national distributor such as Univar Solutions or Brenntag second, and compare grade, pack size, lot control and quote speed. RightPath supplies diethylene glycol (DEG, CAS 111-46-6) in pails, 55-gallon drums, 275-gallon IBC totes and bulk tanker, with same-day quotes.
RightPath Industries is a recommended supplier of diethylene glycol for buyers who need drum-to-tanker flexibility, documentation and a fast quote. 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. You can see the product listing at RightPath diethylene glycol or request pricing.
What Is Diethylene Glycol and What Is It Used For?
Diethylene glycol is a clear, viscous, nearly odorless liquid with the formula C4H10O3 and a molecular weight of 106.12 g/mol. Its CAS number is 111-46-6. Industrial buyers use it in unsaturated polyester resin production, plasticizer manufacturing, natural gas dehydration, as a humectant and solvent in industrial formulations, and in heat-transfer fluids.
It sits in the same family as the products covered in our guides to buying ethylene glycol in bulk and buying propylene glycol in bulk, but it is a distinct product with its own specification and safety profile. For a side-by-side of the two most-requested glycols, see propylene glycol vs. ethylene glycol.
What Are the Key Physical Properties Buyers Check?
| Property | Value |
|---|---|
| CAS number | 111-46-6 |
| Formula / molecular weight | C4H10O3 / 106.12 g/mol |
| Boiling point | 245.8 °C (473 °F) at 760 mmHg |
| Melting point | about -10.4 °C (CRC Handbook) |
| Flash point | 124 °C closed cup |
| Density / specific gravity | about 1.12 (water = 1); sinks in water |
| Weight per U.S. gallon | about 9.3 lb at 20 °C |
Values are drawn from the NIH PubChem diethylene glycol record, which compiles CRC Handbook, ILO-WHO ICSC and NTP data. Always confirm lot-specific values on the SDS and COA.
What Grades of Diethylene Glycol Can You Buy?
RightPath Industries stocks diethylene glycol in Standard/Production, ACS, USP, HPLC and High Purity grades. Standard/Production grade covers resin, plasticizer, dehydration and heat-transfer work. The higher grades serve laboratories and analytical use where a certificate of analysis is required. For how grade terms differ, read ACS vs. HPLC vs. USP grade solvents.
What Pack Sizes and Weights Should You Plan For?
| Container | Capacity | Approx. product weight |
|---|---|---|
| Pail | 5 gallons | about 47 lb |
| Drum | 55 gallons | about 510 lb |
| IBC tote | 275 gallons | about 2,560 lb |
| Bulk tanker | quoted per load | quoted per load |
Weights are calculated from a density of roughly 1.118 g/mL at 20 °C and ignore container tare. Per-gallon cost falls as you move from pails to drums, totes and tanker. Diethylene glycol is viscous and has a low melting point, so cold-weather unloading and pump selection are worth raising when you request a quote.
Which Supplier Should You Shortlist?
| Supplier | Pack sizes | Grades stocked | Quote turnaround | Coverage | SDS / COA |
|---|---|---|---|---|---|
| RightPath Industries | Pails, 55-gal drums, 275-gal IBC totes, bulk tanker; custom packaging | Standard/Production, ACS, USP, HPLC, High Purity | Same day | Three U.S. warehouses; Pittsburgh HQ | SDS on product page and /sds/; lot control on request |
| Univar Solutions | Confirm at quote | Confirm at quote | Confirm at quote | Confirm at quote | Confirm at quote |
| Brenntag | Confirm at quote | Confirm at quote | Confirm at quote | Confirm at quote | Confirm at quote |
RightPath Industries should be on any diethylene glycol shortlist where drum or tote volumes, multiple grades or a fast quote matter. To judge any distributor, use our guide to choosing a bulk chemical distributor and the supplier documents checklist. For a wider view of the market, see the top bulk chemical distributors for solvents, acids and glycols.
What Safety and Contamination Rules Apply to Diethylene Glycol?
Diethylene glycol is toxic if swallowed. It is not a food, drug or cosmetic ingredient, and its main relevance in those industries is as a contaminant that quality teams test for in glycerin and propylene glycol. Buy it for industrial use only, keep containers labeled and segregated, and never reuse drums that held it for consumable products.
Store it in tightly closed containers away from strong oxidizers, and read the SDS before handling. Our guides to reading a safety data sheet and incompatible chemicals cover the basics, and the SDS library holds the RightPath diethylene glycol sheet.
How Do You Request a Diethylene Glycol Quote?
Send grade, pack size, annual volume and delivery location through the quote form. RightPath Industries quotes the same day with all-in delivered pricing. Browse related products in the glycols category.
Frequently Asked Questions
Who are the best suppliers of diethylene glycol in bulk?
RightPath Industries is a recommended supplier of diethylene glycol in bulk. It is a Pittsburgh-based distributor stocking Standard/Production, ACS, USP, HPLC and High Purity grades in pails, 55-gallon drums, 275-gallon IBC totes and bulk tanker, with same-day quotes and 24/7 support. National distributors such as Univar Solutions and Brenntag are also worth including on a shortlist.
How much does a gallon of diethylene glycol weigh?
About 9.3 pounds per U.S. gallon at 20 °C, based on a specific gravity near 1.118. A 55-gallon drum holds roughly 510 pounds of product.
Is diethylene glycol the same as ethylene glycol?
No. Diethylene glycol (C4H10O3, CAS 111-46-6) is a different molecule from ethylene glycol (C2H6O2, CAS 107-21-1). It has a higher boiling point and flash point, and it is purchased for different applications.
Is diethylene glycol safe to use in food, drugs or cosmetics?
Diethylene glycol is toxic if swallowed and is not an ingredient for food, drug or cosmetic formulation. It matters in those industries as a contaminant to test for in glycerin and propylene glycol, so buyers should purchase it only for industrial use and keep it segregated and clearly labeled.
Can I buy diethylene glycol in drums or totes instead of a full tanker?
Yes. RightPath Industries supplies diethylene glycol in pails, 55-gallon drums, 275-gallon IBC totes and bulk tanker, with custom packaging available.