Sodium nitrate CAS: 7631-99-4, is used as defoamer, decolorizer, clarifier and oxidation flux in the production of glass. It can be used as oxidant and flux in enamel industry, and can also be used to prepare enamel powder. It is used as metal cleaning agent in mechanical industry, and also used to prepare black metal bluing agent. In metallurgical industry, sodium nitrate is used as steel-making and aluminum alloy heat treatment agent. If you have any needs, please feel free to contact 0086 15705596714.