It is impossible to discuss nitrogen tetroxide and nitrogen dioxide separately. They exist in equilibrium with each other under certain circumstances, so it is fitting that they be discussed together. Both are members of a family of chemical compounds known as the nitrogen oxides, written NOX.
Ethyl mercaptan is a flammable, toxic, irritating, highly volatile, yellow liquid with an overpowering, offensive odor. It is used as an odorant for natural gas and LPG (liquid petroleum gas). It also is used as an adhesive stabilizer and as an intermediate raw material in the manufacture of antioxidants, defoliants, insecticides, pharmaceuticals, and some types of plastics.
Chloroforming is a toxic, irritating, corrosive, nonflammable, colorless to yellowish-green, slightly oily liquid with extremely irritating vapors. It is used as a tear gas and has been used as a poison gas in warfare. It also is used in the manufacture of dyes, fumigants, fungicides, insecticides, and pestcides.
Butylamine is a flammable, corrosive, toxic, irritating, colorless liquid with an ammonia-like odor. It is used to manufacture many classes of chemicals, including corrosion inhibitors, dyes, emulsifying agents, insecticides, pharmaceuticals, photographic developing materials, tanning agents, rubber, and other polymers.
Cyclopentane is a flammable, moderately toxic, slightly irritating, narcotic, clear, colorless liquid with an odor reminiscent of gasoline. It is used as a component of gasoline, as a solvent, and as a raw material in the manufacture of other chemicals.
Isobutylene is a flammable, polymerizable, reactive, colorless gas with a faint petroleum-like odor. Used as a monomer for polymers such as polyisobutylene and butyl rubber, it also is used to make aviation gasoline, antioxidants, and other chemicals. Isobutylene is easily liquefiable and may be used by itself or be included in a mixture of propane, propylene, butane, and butylene gases and may be referred to as LPG, or liquefied petroleum gas.
Isopentane is a flammable, mildly irritating, clear, colorless, liquid hydrocarbon that belongs to the alkane family. It has a low boiling point and an odor similar to gasoline. It is used as a solvent and has replaced foamed polystyrene blowing agents that are harmful to the ozone layer.
Tetrachloroethylene is a nonflammable, toxic, irritating, colorless liquid with an ether-like, sweet odor. It is classified as a potential or probable carcinogen and is widely used as the solvent in dry cleaning operations. It also is used as a metal degreaser, as a drying agent for metal and wood, as a heat exchange fluid, and as a solvent in many industries.
Propylene is a flammable, reactive, polymerizable, colorless gas that may have a faint, petroleum-like odor when pure. An odorant added to propylene makes it possible to determine whether propylene has been accidentally released at levels far below the lower flammable limit.
Dichlorosilane is a toxic, pyrophoric, flammable, corrosive, water-reactive, irritating gas with a very repulsive odor. The gas is colorless but forms a fuming white mist when exposed to air. Its major use is in the manufacture of electronic devices. It may be shipped in containers that have no safety relief devices; its usual shipping container is a cylinder with a maximum water capacity of 250 pounds.