Sodium Nitrite
ALTERNATIVE NAMES
Sodium Nitrite Salt
TECHNICAL SPECIFICATIONS
CAS
7632-00-0
EC
231-555-9
Food Code
E250
Sodium nitrite is a white to yellowish crystalline powder with formula NaNO2 and molecular weight 69.00 g/mol. Density 2.17 g/cm³, melting point 271°C, decomposes above 320°C; soluble in water (848 g/L at 25°C), hygroscopic with slight odor. Acts as both oxidant and reductant; produced by absorbing nitrogen oxides in sodium carbonate solution.
Sodium Nitrite
Used in food curing as preservative, diazotization in dyes, corrosion inhibition, antidotes for cyanide, and in rubber accelerators.
Toxic; forms carcinogenic nitrosamines, causing methemoglobinemia. Oxidizer; avoid acids and combustibles. Hazard Class 5.1/6.1 with PPE required.
In 25kg bags or drums; store cool and dry; rinse for recycling or puncture packaging for landfill.
