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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Toxic: Reaction products may be toxic

Nitriles can be hydrolyzed to carboxylic acids and ammonium salts by heating them with strong acids (Loudon, Marc. 2002. Organic Chemistry. 4th ed. New York: Oxford University Press. p. 955).

Toxic hydrogen cyanide gas can be evolved when acetone cyanohydrin or propionitrile are in contact with strong acids (Rich, G. A., 1993, Dangerous Chemical Reactions, Gulf Publishing Co., Houston, TX, p. 242).

Acetonitrile produces toxic and flammable gases on contact with acids (Lewis, R.J., Sr. 1992. Sax's Dangerous Properties of Industrial Materials, 8th Edition. New York: Van Nostrand Reinhold. pp. 24.).

Nitriles may liberate toxic HCN gas upon exposure to HX acids (Smith, P. A. S., Open-Chain Nitrogen Compounds, Vol. I. New York: W. A. Benjamin, Inc., 1965, pp. 220).

Dialkylcyanamides may also be decarboxylated by acids to liberate inert CO2 gas (Smith, P. A. S., Open-Chain Nitrogen Compounds, Vol. I. New York: W. A. Benjamin, Inc., 1965, pp. 248).

Potential Gas Byproducts

• Carbon Dioxide (CO2)
• Hydrogen Cyanide (HCN)