Sodium nitrate is 1.used in azodyestuff,bleaching agent, 2.metal heat treatment auxiliary agent, 3.and in pharmaceutical in Sodium NitrateMolecular formula:NaNO3Molecular ... property.Uses: it ismostly used in manufacturing nitro-compound, Potassium nitrate , azodyestuff, dye mordant in textile coloration, bleaching agent, metalheat ... Na2CO3): 0.1% Max.Iron (As Fe): 0.005% Max. Sodium nitrate