An Acetonitrile is a nitrile in which the hydrogen has been replaced by a methyl group in hydrogen cyanide. As an aprotic polar solvent, it inhibits EC 3.5.1.4 (amidase). It is a volatile organic compound composed of aliphatic nitriles. The liquid acetonitrile has an aromatic odor and is colorless and limpid. In addition to its many uses as a solvent, Acetonitrile is used for spinning fibers and for making lithium batteries. Automobile exhaust and manufacturing facilities are the most common sources of this gas. When exposed to acute (short-term) inhalation, mucous membranes are irritated. There are a number of effects on the central nervous system associated with chronic (long-term) exposure, such as headaches, numbness, and tremors. According to the EPA, it is not classified as carcinogenic to humans; the data are unavailable.
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