Mainly used in chemistry. Glass, explosives, pyrotechnics, dyes, metallurgy, machinery, enamel and other industries can also be used for meat preservatives. It is very versatile.
It is a raw material for the manufacture of potassium nitrate, mine explosives, picric acid, dyes, and the like. A nitrating agent for the manufacture of dye intermediates. The glass industry is used as a defoaming agent, a decolorizing agent, a clarifying agent and an oxidizing flux.