Colorless, low boiling flammable liquid with ether odor. Industrial products are racemic mixtures of two optically active isomers. Freezing point -112.13 ℃. Boiling point is 34.24 ℃. Relative density 0.859. Flash point<-37 ℃, refractive index 1 3664. Viscosity (25 ℃) 0.28mPa. s, partially miscible with water [solubility in water at 20 ℃ 40.5% by weight]; solubility of water in epichlorohydrin 12 8% (by weight), miscible with ethanol and ether, and forms binary azeotropes with dichloromethane, pentane, pentene, cyclopentane, cyclopentene, etc.

Important raw materials for organic synthesis, used to manufacture propylene glycol, allyl alcohol, propionaldehyde, synthetic glycerol, organic acid, synthetic resin, foam plastic, plasticizer, surfactant, emulsifier, wetting agent, detergent, bactericide, fumigant, etc.