Sodium nitrate
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Sodium nitrate
Sodium nitrate

Sodium nitrate

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Sodium nitrate


Sodium nitrate, melting point 306.8 ℃, density 2.257 g / cm3 (at 20 ℃), is colorless, transparent or white slightly yellow rhombic crystal. It tastes bitter and salty, is easily soluble in water and liquid ammonia, slightly soluble in glycerol and ethanol, and is easy to deliquesce. Especially when it contains a very small amount of sodium chloride impurities, the deliquescence of sodium nitrate is greatly increased. When dissolved in water, the solution temperature decreases and the solution is neutral. When heated, sodium nitrate is easy to decompose into sodium nitrite and oxygen. Sodium nitrate can support combustion and must be stored in a cool and ventilated place. It is oxidizing. Friction or impact with organic matter can cause combustion or explosion. It is irritating and has little toxicity, but it is harmful to human body!
Function and use

Enamel industry is used as flux, oxidant and raw material for preparing enamel powder. Glass industry is used as decolorizing agent, defoaming agent, clarifying agent and oxidation flux for all kinds of glass and products. Inorganic industry is used as decolorizing agent for molten caustic soda and in the manufacture of other nitrates. The food industry is used as a chromogenic agent for meat processing, which can prevent meat deterioration and play a role in seasoning. Chemical fertilizer industry is used as quick acting fertilizer for acid soil, especially for root crops, such as sugar beet, radish, etc. The dye industry is used as raw material for the production of picric acid and dyes. Metallurgical industry is used as heat treatment agent for steelmaking and aluminum alloy. Jicheng industry is used as metal cleaning agent and preparation of ferrous metal bluing agent. The pharmaceutical industry is used as a culture medium for penicillin. Cigarette industry is used as combustion supporting agent of tobacco. Used as a chemical reagent in analytical chemistry. In addition, it is also used in the production of explosives.

Chemically pure sodium nitrate is used for low chromic acid passivation of zinc coating and oxidation solution of magnesium alloy.

Packing: 25kg / 50kg

Executive standard: GB / t4553-2002