Water or water spray in early stages of fire. Foam or dry chemical may also be used. Water streams may scatter molten material. Decomposition of sodium nitrite may leave a caustic residue. This material is stable in closed containers at room temperature.
Material slowly oxidizes to sodium nitrate when exposed to air.
Oxides of nitrogen. This substance does not polymerize. Ammonium salts, cellulose, cyanides, lithium, potassium plus ammonia, sodium thiosulfate, aminoguanide salts, butadiene, phthalic acid, phthalic anhydride, reducants, sodium amide, sodium disulphite, sodium thiocyanate, urea, wood and organic matter. Ventilate area of leak or spill. Clean-up personnel require protective clothing and respiratory protection from dust.