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SECTION 10: Stability and reactivity <br /> Reactivity <br /> NIOSH considers vinyl chloride to be a potential occupational carcinogen. <br /> The substance can form explosive peroxides under specific circumstances. The substance readily polymerizes due to heating and under the influence of air, light <br /> and on contact with a catalyst, strong oxidizing agents and metals such as copper and aluminium. This generates fire or explosion hazard. Decomposes on <br /> burning. This produces toxic and corrosive fumes of hydrogen chloride and phosgene. Attacks iron and steel in the presence of moisture. <br /> Decomposes on heating. This produces toxic fumes including hydrogen chloride and phosgene. Reacts violently with fluorine. <br /> Chemical stability <br /> May produce peroxides. <br /> Possibility of hazardous reactions <br /> Dangerous, when exposed to heat or flame, or oxidizers. Large fires of this material are practically inextinguishable.The gas is heavier than air and may travel <br /> along the ground; distant ignition possible. Vapours are uninhibited and may polymerize, causing blockage of vents.,Dust explosion possible if in powder or <br /> granular form, mixed with air.VINYL CHLORIDE is peroxidizable. Forms explosive polymeric peroxides in contact with air(in the presence of any of a variety of <br /> catalysts) [Bretherick 1979. p. 164]. Long storage in contact with air increases the concentration of the polyperoxides to hazardous levels [MCA Case History <br /> 1551. 1969]. The peroxides may initiate exothermic polymerization of the remaining material [Handling Chemicals Safely 1980.p. 958; Bretherick 1979. p. 160]. <br /> Light-sensitive. Many oxidizing agents apparently initiate polymerization (oxides of nitrogen, 02, etc.). May react with very hot water or steam to produce toxic <br /> fumes. <br /> Conditions to avoid <br /> no data available <br /> Incompatible materials <br /> On treatment with strong alkalis at high temperatures it loses hydrogen chloride. <br /> Hazardous decomposition products <br /> Decomposes on burning. This produces toxic and corrosive fumes of hydrogen chloride and phosgene. <br />