Ningxia Dongcang Chemical New Energy Technology Co., Ltd.

Physical properties: white to light yellow granular, rod or powder.It's hygroscopic.Heated to 320 above decomposition.It is slowly oxidized into sodium nitrate in the air.The brown trioxide gas is released by the decomposition of weak acid.Dissolved in 1.5 portions of cold water, 0.6 portions of boiling water, slightly soluble in ethanol.Aqueous solution is alkaline and pH is about 9.Relative density 2.17.Melting point is 271 .It is oxidized, which can ignite and explode with organic contact, releasing toxic and irritating nitrogen and nitrous oxide gases.Medium toxicity, half lethal amount (rats, oral) 180mg/kg

Chemical properties:

The powerful oxidant is also reductive, which gradually oxidizes in the air, and the surface becomes sodium nitrate, which can also be oxidized by oxidants.The gas of brown nitrogen dioxide is released by the decomposition of weak acid;Contact with organics and reductants can cause explosion or combustion and release toxic and irritating nitrous oxide gas;Strong oxidizing agents can also be oxidized, especially the ammonium salts, such as ammonium nitrate and ammonium persulphate, which can interact with each other to produce high heat and ignite combustible combustion.

Sodium nitrite is toxic, there have been rumors of sodium nitrite is carcinogenic substance, but the fact is not carcinogenic substance sodium nitrite, cancer is sodium nitrite nitrosamine generated under certain conditions, the sodium nitrite, nitrogen is + 3 valence.It is an intermediate combination, which is both reductive and oxidizing, such as oxidation of KI to elemental iodine in an acidic solution.