Polyvinyl Chloride Vinyl Chloride

Ann n y acad sci.

Polyvinyl chloride vinyl chloride.

The mutagenicity of this liver carcinogen is dependent on metabolic activation by cyp450 and detoxification is mediated by meh. About 13 billion kilograms are produced annually. Polyvinyl chloride pvc is an important plastic resin for construction pipe and tubing siding and other uses. Miller a teirstein as chuang m selikoff ij warshaw r.

18 as shown in figure 7 6 vinyl chloride is a relatively simple compound. Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc. Rigid sometimes abbreviated as rpvc and flexible. When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc.

It does not occur naturally and must be produced industrially for its commercial uses. Vinyl chloride is the starting material for the production of polyvinyl chloride used in the fabrication of products such as pvc pipe. Vinyl chloride is used primarily to make polyvinyl chloride pvc. Exposures to vinyl chloride monomer during the early years of production resulted in an important sentinel health event.

Prevalence of disease among vinyl chloride and polyvinyl chloride workers. Pvc is used to make a variety of plastic products including pipes wire and cable coatings and packaging materials. Changes in pulmonary function in workers exposed to vinyl chloride and polyvinyl chloride. Vinyl also called polyvinyl chloride or pvc is a plastic that resists water absorption and withstands exposure to sunlight and ozone.

Polyvinyl chloride denoted as pvc is a synthetic polymer produced by the monomer vinyl chloride. Vinyl chloride is an alkene derivative containing a substituted chlorine atom instead of a hydrogen atom. What is vinyl chloride. The recognition of an excess of a rare liver cancer hepatic angiosarcoma at facilities throughout the world.

Lilis r anderson h nicholson wj daum s fischbein as selikoff ij. Pvc vinyl chloride is an organohalogen compound that has important industrial applications. Pvc is the world s third most widely produced synthetic plastic polymer after polyethylene and polypropylene about 40 million tons of pvc are produced each year. Pvc comes in two basic forms.

Pvc is used in the manufacture of numerous products including packaging films and water pipes. This is a linear polymer. Vinyl edge trim covers exposed edges of materials such as glass metal and wood to block out wind water and dust. It s often used for weather stripping and sealing applications.