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Hazard Predictions

• Potentially hazardous: May be hazardous but unknown

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.

Combinations of quaternary ammonium salts with inorganic nitrates have yielded light-sensitized emulsions (DJ Beavers - US Patent 2,940,855, 1960.; Y Oka - US Patent 4,879,200, 1989.; RW Berriman - US Patent 3,367,778, 1968). The effects of this potentially reactive combination of chemicals are unknown, so further testing on a small scale is encouraged, especially given the potentially explosive nature of nitro compounds when mixed with organics.