Propylene Glycol (USP/Industrial)

Propylene glycol (1,2-propanediol, PG, MPG, C3H8O2, CAS 57-55-6) is the non-toxic glycol: a clear, colourless, viscous liquid with a boiling point of 188 °C and specific gravity 1.036, supplied by Global Chemicals LLC in USP pharmaceutical grade at 99.5% minimum and in technical grade, in 200 L drums, 1,000 L IBCs and bulk from stock in Muscat and Rusayl Industrial Area. It does most of what ethylene glycol does, lowering freezing points, raising boiling points, carrying heat, holding moisture and dissolving flavours and actives, without the toxicity, which is why it holds GRAS status and goes wherever a leak could reach people, food or animals.

USP grade. Food and beverage plants run 30–50% propylene glycol solutions as the secondary coolant in breweries, dairies, ice-cream and juice lines and cold stores, so a heat-exchanger leak is harmless; pharmaceutical makers use it as a solvent and carrier in oral, topical and injectable preparations; cosmetics and personal-care formulators as a humectant and solvent in creams, deodorants, toothpaste and hair products; the food industry as a humectant, flavour carrier and the additive E1520; feed mills as an energy supplement and preservative; and e-liquid, fragrance and theatrical-fog producers as the base fluid. Every USP delivery carries the pharmacopoeial certificate of analysis.

Technical grade. The same molecule in industrial purity serves as the heat-transfer and antifreeze fluid in HVAC and solar circuits where the glycol is inhibited and need not be food-safe, in aircraft and runway de-icing fluids, in hydraulic and brake fluids, as the diol of unsaturated polyester resins and alkyds, and as a plasticiser and solvent in paints and inks. The glycols guide linked on this page compares it with monoethylene and butylene glycol.

Handling and storage: propylene glycol is combustible with a flash point near 99 °C, not flammable at ambient temperature, low in toxicity and readily biodegradable; it is hygroscopic, so keep drums closed and dry, store under cover in carbon-steel, stainless or HDPE, and wear gloves and safety glasses. It is not regulated for transport. A technical data sheet and GHS safety data sheet ship with every delivery.

Delivery is same day within Muscat and Rusayl, next day to Sohar, Salalah and Duqm, and by road to the UAE, Saudi Arabia, Qatar, Kuwait and Bahrain with a certificate of origin. Request a quote with the grade, pack type and monthly volume.