vinyl chloride
vinyl chloride
vinyl chloride
vi′nyl chlo′ride
n.
单词 | vinyl chloride |
释义 | vinyl chloridevinyl chloridevinyl chloridevi′nyl chlo′riden. Vinyl Chloridevinyl chloride[′vīn·əl ′klȯr‚īd]Vinyl Chloride(CH2=CHC1), a colorless gas with a slight odor resembling that of chloroform; Tb = - 13.8° C; Tm = -153.8° C. Density at -15° C, 0.9730 g/cm3. It is poorly soluble in water but readily soluble in organic solvents. The explosive limit of vinyl chloride in air is 4-22 percent by volume. The double bond in vinyl chloride readily adds halogens, hydrogen halides, and so on: Vinyl chloride polymerizes and copolymerizes with vinylidene chloride, vinyl acetate, and other substances. In industry it is obtained by vapor-phase (rarely liquid-phase) hydrochlorination of acetylene in the presence of HgCl2 on carbon or by dehydrochlorination of dichloroethane: The resultant product contains not less than 99 percent vinyl chloride and does not polymerize spontaneously. Vinyl chloride is used extensively to make polyvinyl chloride and copolymers with other vinyl compounds; these are important materials that are used in the most diverse branches of industry. vinyl chloridevi·nyl chlo·ridevinyl chlorideToxicology A monomer that polymerizes to polyvinyl chloride–PVC, which is used in organic chemistry and manufacturing plastics Adverse effects VC is carcinogenic and carries a risk of liver, brain, lung CA, lymphoma, leukemia. See PVC–polyvinyl chloride.vinyl chloride |
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