Sodium nitrite (NaNO₂) is an inorganic salt produced by the neutralisation of nitrite ions with sodium ions. Sodium nitrite is easily deliquescent, soluble in water and liquid ammonia, its aqueous solution is alkaline, its pH is about 9, slightly soluble in ethanol, methanol, ether and other organic solvents. Sodium nitrite has a salty flavour and is again used to make fake table salt.
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Applications:
Colour layer analysis. Spot analysis to determine mercury, potassium and chlorate.
Diazotisation reagent. Nitrosation reagent. Soil analysis. Determination of serum bilirubin in liver function tests.
Bleaching agent for silk and linen, heat treatment agent for metal, corrosion inhibitor for steel, antidote for cyanide poisoning, reagent for laboratory analysis.
Analytical reagent, used as colouring agent, anti-microbial agent and preservative in meat processing. It has applications in bleaching, electroplating and metal treatment, and is called industrial salt.
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