Flammable gases, exposion properties

The toxic properties of chemicals can be found in a reference such as Hazardous Chemicals Desk Reference (Sax and Lewis 1987), which lists a number of chemicals alphabetically by name. For instance, n-butane is classified (by the Department of Transportation) as a flammable gas, is moderately toxic via inhalation, causes drowsiness, is an asphyxiant, poses very dangerous fire hazard when exposed to heat, flame, or oxidizers, and is highly explosive when exposed to flame. Information about safety and environment is also provided and updated by websites maintained by government agencies, such as the U.S. EPA, the National Institute of Occupational Safety and Health, and the National Safety Data Sheet. 

Use and exposure Diborane is a colorless gas at room temperature with a repulsive, sweet odor. It mixes well with air and easily forms explosive mixtures. Diborane will ignite spontaneously in moist air at room temperature and can cause explosions. Diborane is used in rocket propellants and as a reducing agent, a rubber vulcanizer, a catalyst for hydrocarbon polymerization, a flame-speed accelerator, and a doping agent. Diborane is a very toxic and flammable gas used by chemists to make other compounds. It is also used in electronics to impart electrical properties in pure crystals. Industrial workers are exposed to diborane by breathing in its vapors in work areas. - ... 

Properties Colorless gas or liq., sharp, intensely irritating odor easily liquefied by pressure sol. in water, alcohol, ether m.w. 17.03 sp.gr. 0.682 (-33.4 C) f.p. -77 C b.p. -33.5 C pH 11.6 (IN aq.) Toxicology ACGIH TLV/TWA 25 ppm STEL 35 ppm LD50 (inh., mouse, 1 h) 4837 ppm, (oral, rat) 350 mg/kg (ammonium hydroxide) corrosive inh. of cone, fumes may be fatal irritating to eyes and mucous membranes shown to produce cancer of the skin in human doses of 1000 mg/kg of body wt. TSCA listed Precaution Moderate fire risk caustic Hazardous Decomp. Prods. Exposed to heat, emits toxic fumes of NH3 and NOx NFPA Health 3, Flammability 1, Reactivity 0 Uses Fertilizer refrigerant nitriding of steel condensation catalyst neutralizer extraction... 

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