Nature：

Colorless cubic crystal or white crystal. Taste salty cold and slightly bitter. Relative density 1.527. Heat up to 350. Boiling point 520. Soluble in water, soluble in liquid ammonia, slightly soluble in alcohol, insoluble in acetone and ether. The volatile was heated to 100 DEG C, 337.8 degrees for the dissociation of ammonia and hydrogen chloride, ammonium chloride freeze again after synthesis of the smallest particles and white fog, is not easy to sink, also not easy to dissolve in water. Moisture absorption is small, but also can absorb moisture in wet and rainy weather. The water solution is weakly acidic, and the acidity is enhanced when heated. Corrosion of ferrous metals and other metals, especially for copper corrosion, the role of no corrosion of pig iron.

Uses: mainly used for dressing and tanning, fertilizer for agriculture. Used as dyeing auxiliaries, electroplating bath additives, metal welding flux. Also used in tin plating, zinc plating, medicine, making candles, chrome, precision casting.