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Hazard Predictions

• Generates heat: Exothermic reaction at ambient temperatures (releases heat)

Nitrates may oxidize sulfides under certain conditions (C. O. Kinen, L. I. Rossi and R. H. de Rossi, "Mechanism of the Selective Sulfide Oxidation Promoted by HNO3/FeBr3," J. Org. Chem., 2009, 74 (18), pp 7132-7139).

In general, nitrate and nitrite salts with redox active cations are more reactive with organic materials and reducing agents at ambient conditions. Redox active cations are transition metals and the metals in group 3a, 4a, and 5a of the periodic table and also include the ammonium cation NH4+. In general, nitrate and nitrite salts with non-redox active cations (also called spectator cations) are less reactive at ambient conditions. These include the alkali metals and alkaline earth salts. Caution should be used before proceeding. Further research of comparable examples in the literature or very small scale, carefully controlled experiments may be needed to fully assess compatibility.