Easy pull cover tinplate cans inspection chemical characteristics of sodium nitrate, sodium nitrate is colorless tripartite crystallization or small prismatic crystal or white crystal or powder. Odourless, taste salty, slightly bitter. Relative density 2.261, melting point is 306.8 ℃, soluble in water and liquid ammonia, soluble in ethanol, methanol, slightly soluble in glycerol and acetone, deliquescence, when very small amounts of sodium chloride impurities, greatly increasing the deliquescence, starts to break down at 380 ℃, 400 ~ 600 ℃ when release nitrogen and oxygen, release nitric oxide, when heated to 700 ℃ and 770 ~ 865 ℃ when only a small amount of nitrogen oxide and nitric oxide. As oxidant, will contact with the organic matters, such as sulfur burning and explosion.
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