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`—' VINYL CHLORIDE <br /> Known Site Contaminant:Vinyl chloride <br /> Highest Concentration Observed: unknown;in soil. <br /> .r <br /> (specify units and media) <br /> Contaminant Data: <br /> .r Fire and Explosion Hazard: <br /> FLAMMABLE. POISONOUS GAS IS PRODUCED IN FIRE. Flashback along vapor trail may occur. May <br /> explode if ignited in an enclosed area. Forms highly toxic combustion products such as hydrogen chloride,phosgene, <br /> and carbon monoxide. Container may explode in fire. Gas is heavier than air and may travel considerable distance to <br /> a source of ignition and flash back. (USCG, 1985) <br /> Protective Clothing: <br /> Avoid breathing vapors. Keep upwind. Wear self-contained breathing apparatus. Wear protective gloves and <br /> goggles. Do not handle broken packages without-protective equipment. Approach fire with caution. ((C)AAR, 1986) <br /> Health Hazards: <br /> VAPOR: Irritating to eyes,nose,and throat. If inhaled,may cause weakness,abdominal pain,GI bleeding. (USCG, <br /> 1985) <br /> General Description: <br /> Vinyl chloride is a colorless gas with a sweet odor. It is used to make plastics and adhesives,and to make other <br /> chemicals. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. It is <br /> easily ignited. Its vapors are heavier than air and a flame can flash back to the source of leak very easily. This leak <br /> may be either a liquid or vapor leak. Under fire conditions the cylinders or tank cars may violently rupture and <br /> rocket. Prolonged exposure of the cylinders or tank cars to heat or fire may cause the material to polymerize with <br /> possible container rupture. This material is a cancer suspect agent on long term exposure to low concentrations. <br /> However,this effect has not been demonstrated for single exposures to high concentrations of the material. ((C)AAR, <br /> 1986) <br /> Fire Fighting Procedures: <br /> Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected <br /> containers with flooding quantities of water. Apply water from as far a distance as possible. ((C)AAR, 1986) <br /> Spill Cleanup: <br /> Keep sparks,flames,and other sources of ignition away. Keep material out of water sources and sewers. Attempt to <br /> stop leak if without hazard. Use water spray to knock-down vapors. ((C)AAR, 1986) <br /> First Aid: <br /> If a person breathes in large amounts of this chemical,move the exposed person to fresh air at once. If breathing has <br /> stopped,perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as <br /> possible. (NIOSH, 1987 <br /> Warning Concentration(ppm or mgW): Poor warning properties <br /> Exposure Limits/Guidelines: <br /> OSHA PEL: 1 ppm <br /> NIOSH REL: CA <br /> ACGIH TLV-TWA: 5 ppm,confirmed human carcinogen <br /> IDLH: Carcinogen,limit exposure to lowest feasible level <br /> Photoionization Potential: 9.99 eV <br /> Page 32 of 32 <br />