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Hazard Predictions

• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Intense or explosive reaction: Reaction may be particularly intense, violent, or explosive

Amines, including dimethylamine, triethylamine, pyridine, and quinoline, decompose maleic anhydride to CO2, in a reaction that is often violent (Davie, W.R. 1964. Chemical and Engineering News 42(8):41; Vogler, C.E. et al. 1963. Journal of Chemical and Engineering Data 8:620).

Acetic anhydride reacts exothermically with amines, including a vigorous reaction with aniline (Lewis, R.J., Sr. 1992. Sax's Dangerous Properties of Industrial Materials, 8th Edition. New York: Van Nostrand Reinhold. pp. 254) to form amides (Wagner, F.S. 2005. Acetic Anhydride. In Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. (Online)).

Methylamine and ethylenediamine have unstated incompatibilities with anhydrides (Lenga, R.E., ed. 1988. Sigma Aldrich Library of Chemical Safety Data, 2nd Edition. Sigma Aldrich. pp. 1604, 2283).

Potential Gas Byproducts

• Carbon Dioxide (CO2)