Sodium Nitrite (Standard) is the standard substance of Sodium Nitrite, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Sodium Nitrite (Nitrous acid, sodium salt) is a compound that is not easy to store and will oxidize to nitric acid if left in the air.Sodium Nitrite has a variety of functions, both oxidizing and reducing, and is very versatile.