Sodium Nitrite
Test
Specification…BP
Appearance
Colorless crystals or mass or yellowish rods, hygroscopic
Solubility
Freely soluble in water, soluble in alcohol
Appearance of solution
The solution is clear and not more intensely colored than the reference solution
Acidity or alkalinity
Passes test
Chlorides
Maximum 50ppm
Sulphates
Maximum 200ppm
Heavy metals
Maximum 20ppm
Loss on drying
Maximum 1%
Assay
Not less than 98.5% and not more than 100.5%