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Industrial grade 1,2-Propanediol　Pharmaceutical Grade 1,2-Propanediol　1,2-Propanediol Shandong general agency 　Imported 1,2-Propanediol
Pharmaceutical/Industrial grade Japan 210kg/drum
1,4-Butanediol　 Japn 1,4-Butanediol　　Agent of 1,4-Butanediol　　Wholesale of 1,4-Butanediol　
99.9% Japan/Domestic 200kg/drum
CAS No.: 57-55-6
Molecular formula: C₃H₈O₂ 　　
Relative molecular weight: 76.09 　　
Relative density :(20/20^οC)1.0381
Appearance: Colorless hygroscopic viscous liquid, almost odorless. 　　
Boiling point: 188.2 　　Melting point: -59^οC 　　
Ignition point: 421.1^οC 　　Viscosity (20 ^οC): 56.0mpa.s, 　　
Surface tension: 72.0 (25^οC)
Specific heat capacity (20 ^οC) 2.49kJ/(kg.^οC), 　　
Heat of vaporization (101.3kpa) 711kJ/kg.
Miscible with water, ethanol and a variety of organic solvents.
Use: 1,2-Propanediol can be used as the raw material of unsaturated polyester resin. In cosmetic, toothpaste and soap, it can be used with glycerin or sorbitol as wetting agent. In tint, it is used as humidifying and levelling agent. Also used as antifreeze. It can be used in cellophane, plasticizer and pharmaceutical industry.