Colorless cube crystals or white crystalline powder. Cool and micro salty taste bitter, soluble in water shows acidic, PH in commonly 5.6 or so. The relative density 1.527. Soluble in water, soluble in ethanol, soluble in liquid ammonia, insoluble in acetone and aether. Heating to 100 ℃ start, when 337.8 ℃ significant volatility for ammonia and hydrogen dissociated, encounter cold it again and depolarisation generating particles of tiny chloride and a white smoke, not easy sinking, also very not easy to dissolve in water. Heating to 350 ℃ sublimation, boiling point ℃ 520. Hygroscopic small, but in humid wet weather can suck tide agglomerate. Powdery chloride easily absorption of moisture, wet ammonium hygroscopic point, particularly in commonly 76% or so, as air relative humidity is greater than hygroscopic point, chloride, which produce hygroscopic phenomenon, easy to agglomerate. A weak acidic aqueous solution, heating acidic enhanced. To ferrous metals and other metal corrosive, especially for copper corrosion more big, to cast iron without corroddent function. This product at present basically have two kinds of production process: one is the famous Chinese scientists with HouDeBang invented HouShi system exists, while producing soda ash and ammonium chloride two products, Second is the production of potash, such as sylvite byproducts. Ammonium chloride easily agglomerate, usually with add anticaking agents way to prevent the product agglomerate.