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| Propanediol |
 Chemical name:1,2-propanediol,propylene glycol, 1,2-dihydroxypropane, methyl ethyl glycol.
CAS NO :57-55-6
Alias:propenyl glycol, 1,2Propanediol.
Molecular formula:C3H8O2
Molecular weight:76.09
Density : (20/20°C)1.0381
Structural formula:CH3—CHOH—CH2OH (1,2-Propanediol) or CH2OH—CH2—CH2OH(1,3-Propanediol)
Appearance: colorless moisture-absorption viscous liquid, nearly odorless.
Boiling point:188.2
Melting point:-59°C
Fire point:421.1°C
Viscosity(20 °C)56.0mpa.s,
Surface tension:72.0 (25°C)
Specific heat capacity(20 °C)2.49kJ/(kg.°C),
Heatofvaporization(101.3kpa)711kJ/kg.
Dissolving in water, alcohol and many types of organic aolvent. Propanediol can be used as the raw material of unsaturated polyester resin.
[Use]It can be used as wetting agents in cosmetic, tooth paste and soap. It can be used as humidifying agent, and it can be used in glass paper, plasticizer and pharmacy industry. |
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