chemical name: propylene glycol

synonyms: 1,2-propanediol; propane-1,2-diol;pg

cas no.: 57-55-6

molecular formula: c3h8o2

properties: colorless liquid with steady viscosity and good water absorption; almost odorless, uninflammable and lower toxic. it can be mixed and solved with alcohol, water and various of organic agents.

specifications:

appearance: colorless, clear ,viscous liquid

content, % : ≥99.5

moisture % : ≤0.10

color(pt-co) : ≤6

relative density: 1.038± 0.001

distillation range, deg. c: 184-188

refractive index: 1.430-1.434

application:

pg is mainly used as raw material for preparing unsaturated polyester resin, plasticizer, surface active agent, emulsifying agent and demulsifying agent. it can also be used as mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.