Sodium nitrate is a raw material for the manufacture of potassium nitrate, mine explosives, picric acid, dyes, etc. A nitrifying agent for the manufacture of dye intermediates. The glass industry is used as a defoamer, decolorizing agent, clarifier and oxidation flux for the production of various glass and its products. The enamel industry is used as an oxidizing agent and flux for the preparation of enamel powder. It is used as a metal cleaning agent in the machinery industry and is also used in the preparation of ferrous metal bluening agent. It is used in the metallurgical industry as a heat treatment agent for steelmaking and aluminum alloys. An accelerant used in the light industry to make cigarettes. It is used as a medium for penicillin in the pharmaceutical industry. The fertilizer industry is used as a fast-acting fertilizer for acidic soils, especially for root crops such as sugar beets and turnips. It is also used as a decolorizing agent for molten caustic soda. High-purity analytical reagents, spectroscopic reagents, oxidants, and also used in the synthesis of dyes and the manufacture of explosives and fireworks. Nitrates have the effect of early strength, especially at low temperature and negative temperature, as early strength and antifreeze. It is used as a corrosion inhibitor and desensitizer in toothpaste to prevent dentin hypersensitivity. Sodium nitrate is mainly used as a corrosion inhibitor and an inhibitor of metal embrittlement in boilers in the field of water treatment. In addition, there are a wide range of uses in other fields. Sodium nitrate is added to the low-pressure boiler system to inhibit the corrosion of the metal on the water side and prevent the embrittlement of the metal material. When sodium nitrate is used as a metal embrittlement inhibitor, it needs to be compounded with sodium hydroxide and maintained in a certain proportion. Electroplated grade or chemically pure sodium nitrate can be used for the addition of electroplating black chromium, but also in black chrome plating electrolytes, as well as in low chromatic acid passivation, zinc immersion, magnesium and oxidation solutions of magnesium and magnesium alloys for zinc plating layers.
