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It is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC). Vinyl chloride is a colourless flammable gas that has a sweet odor and is carcinogenic. Vinyl chloride monomer is among the top twenty largest petrochemicals (petroleum-derived chemicals) in world production. [2]
In a fire, PVC can form hydrogen chloride fumes; the chlorine serves to scavenge free radicals, making PVC-coated wires fire retardant. While hydrogen chloride fumes can also pose a health hazard in their own right, it dissolves in moisture and breaks down onto surfaces, particularly in areas where the air is cool enough to breathe, so would ...
The original mass of flammable material and the mass of the oxygen consumed (typically from the surrounding air) equals the mass of the flame products (ash, water, carbon dioxide, and other gases). Lavoisier used the experimental fact that some metals gained mass when they burned to support his ideas (because those chemical reactions capture ...
Fire-retardant materials are designed to burn slowly.. Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat.
80–90% of world production is used in PVC, much of the rest is used in cellulose acetate. For most products loadings are between 10 and 35%, high loadings are used for plastisols: 34% Flame retardants: 1–30: Being petrochemicals, most plastics burn readily, flame retardants can prevent this: Brominated flame retardants, chlorinated paraffins
Norfolk Southern released and ignited 115,000 gallons of vinyl chloride, a lethal flammable gas used to make PVC plastic, along with a variety of other chemicals and petroleum products.
Equipped with two exits covered by clear PVC flaps, this outdoor cat house offers security while maintaining warmth inside. Also, assembly is quick and tool-free, so setting it up in a garage ...
For example, instead of forming toxic, flammable gasses in abundance, polymers prepared with incorporation of cyclotriphosphazene rings give a high char yield upon combustion. [3] Polysialates ( polymers containing frameworks of aluminum , oxygen , and silicon ) are another type of inorganic polymer that can be thermally stable up to ...