77-58-7

Appearance：yellow liquid

Density：1.05

Boiling Point：560.5ºC at 760 mmHg

Melting Point：22-24ºC

Freezing Point：8℃

Flash Point：226ºC

Refractive Index：n20/D 1.471(lit.)

Stability：Stability Combustible. Incompatible with strong oxidizing agents. May be air sensitive.

Vapor Pressure：0.2 mm Hg ( 160 °C)

CAS No. 77-58-7, otherwise known as Propylene Glycol, is a clear, colorless, odorless viscous liquid with a sweet taste. It is a propane-1,2-diol with a molecular weight of 76.09 g/mol and a boiling point of 188°C.

Propylene Glycol is a versatile compound which is used in a wide variety of applications. It is a common ingredient in many cosmetic, food and pharmaceutical products. In the chemical and petrochemical industry, it is employed as a solvent, antifreeze, heat transfer medium, humectant and viscosity modifier. It is also extensively used as a coolant in refrigeration and air conditioning systems.

In the food industry, Propylene Glycol is used as a flavor enhancer and preservative. It is also often used as a food stabilizer and emulsifier. In the automotive industry, it is used as a coolant, antifreeze and lubricant. Propylene Glycol is also used in the production of polyester resins and plasticizers.

Propylene Glycol is a low toxicity compound with a slightly bitter taste. It is non-flammable, non-volatile and has a low vapor pressure. It is also non-toxic and non-irritating to the skin and eyes. It is generally regarded as safe by the U.S. Food and Drug Administration.

Propylene Glycol is an essential chemical in many industries. Its versatility and low toxicity make it an ideal choice for a wide variety of applications.