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Hazard Predictions

• Explosive: Reaction products may be explosive or sensitive to shock or friction
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)

Nitro compounds and nitrates, including ammonium nitrate, picric acid, and nitrobenzene, form explosive mixtures with potassium or Na-K alloy (Staudinger, H. 1925. Z. Elektrochem. 31:549; Lewis, R.J., Sr. 1992. Sax's Dangerous Properties of Industrial Materials, 8th Edition. New York: Van Nostrand Reinhold. pp. 2518).

Sodium forms shock-sensitive mixtures with explosives containing nitro, nitrate, and nitrite groups (Leleu, J., 1975, Les Reactions Chimique Dangereuse, Cahiers de Notes Documentaires, (79), p. 266).

Nitro compounds can be reduced by alkali metal amalgams, forming reactive radical intermediates. In the presence of a proton source, aliphatic nitro compounds are reduced to hydroxylamines, whereas aromatic nitro compounds can give reactive and flammable amino, hydrazo, azo, or azoxy compounds (Cartolano, A. R. and Vedage, G. A. 2004. Amines by Reduction. Kirk-Othmer Encyclopedia of Chemical Technology. (Online)).