Properties: At normal temperature, it is a kind of clear, colorless liquid with characteristic of pungent odor. Its density is 1.2201(20/4C), melting point is 8.6C,boiling point is 100.8C, flash point in open cup is 68.9C and auto-ignition temperature is 601.1C.It can be mutually dissolved with water, ethanol and glycerol. It is corrodible and reducible. Quality standard: GB/T2093-93