Vinyl chloride, also known as vinyl chloride (Vinyl chloride) is an important chemical used in polymer monomer, ethylene or acetylene can be obtained. Is a colorless, easily liquefied, boiling point -13.9 ℃, the critical temperature of 142 ℃, critical pressure 5.22MPa. Vinyl chloride is toxic, liver cancer and long-term inhalation exposure to vinyl chloride and related. Form explosive mixtures with air, the explosion limit of 4% to 22% (volume), more likely to explode under pressure, storage time should be noted that the container is tightly sealed and nitrogen, and should add a small amount of inhibitor.