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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Intense or explosive reaction: Reaction may be particularly intense, violent, or explosive

Many anhydrides are oxidants, and therefore react vigorously with alkali metals, which are strong reducing agents.

Maleic anhydride is explosively decomposed by alkali metals (MCA Safety Datasheet 88, Manufacturing Chemists' Association, Washington, 1962).

Chromium trioxide reacts incandescently with sodium or potassium (Mellor, J. 1943. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 11, p. 237. Longmans, Green and Co Ltd.).

Dinitrogen pentoxide burns when in contact with sodium or potassium (Mellor, J. 1943. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 8, p. 554. Longmans, Green and Co Ltd.).

Tetraphosphorus decaoxide reacts incandescently with warm sodium or potassium (Mellor, J. 1940. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 8, p. 945. Longmans, Green and Co Ltd.).