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Hazard Predictions

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

Many metals, including aluminum, chromium, iron, magnesium, manganese, cobalt, tin, zinc, and others form explosive mixtures with ammonium nitrate, and can react explosively under 200C (J. W. Mellor, 1946. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 5, pp. 219. Longmans, Green and Co Ltd.; J. W. Mellor, 1964. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 8, Supplement 1, pp. 543-546. Longmans, Green and Co Ltd.).

Zinc can ignite on contact with ammonium salts, including nitrate and chloride, if water is present (G. Sorbe, 1968, Giftige und Explosive Substanzen, Frankfurt, Umschau Verlag, pp. 158; Hanson, R.M. 1976. Journal of Chemical Education 53:578).

The mixture of titanium and AgNO3 or KNO3 is powerfully explosive and sensitive to heat, impact, and friction (Shanley, E.S. 1990. Chemical and Engineering News 68(16):2; J. W. Mellor, 1941. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 7, pp. 20. Longmans, Green and Co Ltd.).

Magnesium can react violently or explosively with inorganic nitrates (J. W. Mellor, 1940. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 4, pp. 272. Longmans, Green and Co Ltd.; J. W. Mellor, 1967. Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 8, Supplement 2, pp. 545. Longmans, Green and Co Ltd.), and ignites on contact with moist silver nitrate (H. Ellern, 1968, Military and Civilian Pyrotechnics, New York, Chemical Publishing Co., pp. 46).

Aluminum forms explosive mixtures with sodium nitrate (Anon. 1935. Fire 28, 30) and other nitrate solutions (Annikov, V.E. et al. 1976. Chemical Abstracts 85:145389).

Powdered aluminum or magnesium ignites when mixed with oxidants, including barium nitrate (J. R. Partington, 1967, General and Inorganic Chemistry, London, MacMillan, 4th ed., p. 364; Pascal, P. 1958. Nouveau Trait茅 de Chimie Min茅rale. Vol. 4, p. 775. Masson et Cie.).