Nitrate is a polyatomic ion containing one atom of nitrogen and three atoms of oxygen. Sodium nitrate is an alkali metal nitrate salt containing sodium and nitrate ions. Sodium nitrate is a clear, colorless, odorless white crystalline Powder . In terms of end-use, the sodium nitrate market can be divided into fertilizers, glass, food additives, construction chemicals, explosives, pharmaceuticals, wastewater treatment, and others. The content of chlorine in our product is less than 0.045%.