90-14-2

Appearance：clear yellow to brown liquid

Density：1.74

Boiling Point：302-305ºC

Melting Point：4ºC

Flash Point：138.4ºC

Refractive Index：1.698-1.704

Cas No: 90-14-2

Propylene glycol is an organic compound with the chemical formula C3H8O2. It is a colorless, odorless, viscous liquid that is practically insoluble in water, but miscible with most organic solvents. It is used in a wide range of applications, including pharmaceuticals, food, textile, cosmetics, and industrial products.

Propylene glycol is a synthetic compound. It has a molecular weight of 76.1 g/mol, and its melting point is -59°C. It is a colorless, odorless, viscous liquid with a slightly sweet taste. It is soluble in water and miscible with most organic solvents. It has a moderate flash point, and is non-flammable.

Propylene glycol is widely used in the food, pharmaceutical, cosmetic, and industrial industries. It is used as an emulsifier, preservative, humectant, thickening agent, and solvent. In the food industry, it is used as an ingredient in frozen desserts, as a food preservative, and as a humectant in bakery products. In the pharmaceutical industry, it is used as an excipient in many medications and is also used as a solvent in some topical preparations. In the cosmetic industry, it is used as a moisturizer, emollient, and humectant. In the industrial sector, it is used as a coolant, lubricant, and preservative in various products.

Propylene glycol has been deemed safe for use in food, pharmaceuticals, and cosmetics by the US Food and Drug Administration (FDA). It is generally recognized as safe (GRAS) by the FDA, and is included in the US Pharmacopoeia (USP). The safety of propylene glycol when used in cosmetics has also been evaluated by the European Union.