Sodium nitrate appears as a white crystalline solid. Noncombustible but accelerates the burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in solid propellants, explosives, fertilizers, and for many other uses.
Sodium nitrate is the chemical compound with the formula NaNO3.This alkali metal nitrate salt is also known as Chile saltpeter to distinguish.it appears as a white crystalline solid.