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[Chemical Knowledge]:What are the role and uses of propylene glycol

propylene glycol is a viscous, colorless liquid, almost odorless, but with a faint sweet taste. Contains two alcohol groups, it is classified as diol. It is miscible with a variety of solvents, including water, acetone and chloroform. Flammable, low-toxic. Miscible with water, ethanol and various organic solvents. Boiling point 187.3 ℃. Melting point- 60 ℃. Relative density 1.0381. Refractive index 1. 4326. Surface tension (20 ℃)38mNm. Viscosity (20 ℃)60. 5mPa -s. Specific heat capacity (20 ℃)2.49kj/(kg ℃).

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Five Functions and Uses

of Propylene Glycol 1. Used as Raw Material for Unsaturated Polyester Resin, Epoxy Resin and Polyurethane Resin

2. Used as raw materials for plasticizers, surfactants, emulsifiers and demulsifiers

3. Used as a solvent for essence and food pigment, tobacco wetting agent, antifungal agent and fruit ripening preservative, drug excipient, etc.

4. Used as antifreeze, heat carrier and food machinery lubricant.

5. Used as aircraft deicing and anti-icing fluid.

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