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Boric acidSodium nitrate

Sodium nitrate

Sodium nitrate, has the melting point at 306.8℃ and density of 2.257g/cm3 (at 20℃), which is colorless and transparent or white with slight yellow rhombus crystal. It tastes bitter and salty, easily soluble in water and liquid ammonia, and sparing soluble in glycerinum and ethyl alcohol. It is easily deliquesced. Particularly, the hygroscopy of sodium nitrate greatly enhances when it contains minute quantity of sodium chloride impurity. If it is dissolved in water, its solution temperature decreases, and the solution is neutral. If heated, sodium nitrate easily decomposes into sodium nitrite and oxygen. Sodium nitrate can help to combust, so it must be stored in the place cool and ventilated. It has oxidability, which may cause burning or explosion due to friction or collision with organic matters. It is irritating, lightly toxic but harmful to human body.

Applicable standard: Industrial sodium nitrate (NaNO3)GB/T4553-2002

Use: used in enamel, glass, inorganic salt, chemical fertilizer, dye, metallurgy, mechanical engineering, medicine, cigarette, analytical chemistry, fireworks etc.

Package: net weight 50kg, in plastic woven bag.

Attention: Do not mix with organic sulfonic acid type metal powder, wood flour and other flammable matters; protected against water, damp and direct sunshine.


Technical indexes:

Index descriptionIndex
Superior productFirst class index Second class index
Content of sodium nitrate(%)≥99.7%≥99.3%≥98.5%
Water(%)≤1.0%≤1.5%≤2.0%
Water insoluble matter(%)≤0.03%≤0.06%---
Chloride (CL)(%)≤0.25%≤0.30%---
Sodium nitrite(%)≤0.01%≤0.02%≤0.15%
Sodium carbonate(%)≤0.05%≤0.10%---
Iron(%)≤0.05%------
Shatter value≥90%
Note: 1. Water content will take the standard in factory acceptance test. 2. Shatter value index is the adding anti-blocking agent product controlling item.


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