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Chemical Name: NITROGEN DIOXIDE, [LIQUIb] <br /> CAS Number. 10102440 <br /> NFPA Degrees of Hazard: ' <br /> Health: 3 Flammability: 0 <br /> Reactivity: 0 Special: Oxidizer <br /> General Description: <br /> Nitrogen dioxide, liquid is a reddish brown colored gas which becomes a yellowish <br /> brown liquid on cooling or compressing. It is shipped as a liquefied gas wider its <br /> vapor pressure. Its vapor is heavier than air. It dissolves in water forming nitric acid, <br /> a corrosive material. it is toxic by inhalation (vapor) and skin absorption. It is <br /> noncombustible but it will accelerate the burning of combustible materials. The <br /> cylinders and "ton container" tank cars may not be equipped with a safety relief <br /> device Prolonged exposure to fire or heat can cause the violent rupturing and <br /> rocketing of the cylinders and tank cars. It weighs 12.1 lbs/gal lon. ((c- AAR, 1991) <br /> Physical Properties: <br /> Fiash Point: Not applicable (NIOSII. 1990) <br /> Lower Exp Limit: Does not burn. (EPA, 1990) <br /> Upper Exp Limit: Does not burn. (EPA, 1990) <br /> Melting Point: 15.3° F (EPA, 1990) <br /> Vapor Pressure: 720 mm at 68° F (EPA, 1990) <br /> Vapor Density (air = 1): 1.58 (FPA, 1990) <br /> Specific Gravity, Liquid: 1.448 at 68' F (EPA, 1990) <br /> Boiling Point: 70.07' F at 760 nun (EPA, 1990) <br /> Molecular Weight: 46.01 (EPA., 1990) <br /> IDLH: 50 ppm (NIOSH, 1990) <br />