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Hazard Predictions

• Flammable: Reaction products may be flammable
• 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
• Toxic: Reaction products may be toxic

BrF3 ignites or explodes on contact with most organic compounds, including carboxylic acids (Mellor, J.W. 1941. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Longmans, Green and Co Ltd., Volume 2. pp. 113; 1956. Volume 2, Supplemental 1. pp. 164-167.).

Acetic acid reacts explosively with BrF5 and is incompatible with ClF3 (Lewis, R.J., Sr. 1992. Sax's Dangerous Properties of Industrial Materials, 8th Edition. New York: Van Nostrand Reinhold. pp. 16.).

Reaction of acetic acid with IF7 is highly exothermic (Booth, H.S. et al. 1947. Chemical Reviews 41:428.).

Carboxylic acids, including acetic and propionic acids, react with PCl3 to produce toxic, flammable phosphine gas and water-reactive, toxic acyl halides (Coghill, R.D. 1938. Journal of the American Chemical Society 60:488; Bretherick, L. 1976. Chemistry in Britain 12:26.).

Carboxylic acids may form water-reactive and toxic acyl halides with phosphorus chlorides, oxychlorides, and thionyl halides (Riemenschneider, W. 2002. Carboxylic Acids, Aliphatic. In Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA. (Online)).

Potential Gas Byproducts

• Hydrogen Halide (HX)
• Phosphine (PH3)
• Acid Fumes