产品介绍 product description
氯化铵（简称“氯铵”,又称卤砂,化学式：NH4Cl）为无色立方晶体或白色结晶粉末。味咸凉而微苦,酸式盐。相对密度1.527。易溶于水及乙醇，溶于液氨，不溶于丙酮和乙醚。水溶液呈弱酸性，加热时酸性增强。加热至100℃时开始显著挥发，337.8℃时离解为氨和氯化氢，遇冷后又重新化合生成颗粒极小的氯化铵而呈白色浓烟，不易下沉，也极不易再溶解于水。加热至350℃升华，沸点520℃。吸湿性小，但在潮湿的阴雨天气也能吸潮结块。对黑色金属和其它金属有腐蚀性，特别对铜腐蚀更大，对生铁无腐蚀作用。氯化铵由氨气与氯化氢或氨水与盐酸发生中和反应得到（反应方程式：NH3 + HCl → NH4Cl）。
Ammonium chloride (referred to as "ammonium chloride", also known as brine, chemical formula: NH4Cl) is a colorless cubic crystal or white crystalline powder. Savory and slightly bitter, acid salt. The relative density is 1.527. Soluble in water and ethanol, soluble in liquid ammonia, insoluble in acetone and ether. The aqueous solution is weakly acidic, and the acidity increases when heated. When it is heated to 100 ℃, it will start to volatilize significantly. At 337.8 ℃, it will dissociate into ammonia and hydrogen chloride. After cold, it will recombine to form very small particles of ammonium chloride. Sublimation by heating to 350 ° C, boiling point 520 ° C. Hygroscopicity is small, but can also absorb moisture and cake in wet rainy weather. It is corrosive to ferrous metals and other metals, especially to copper, and has no corrosive effect on pig iron. Ammonium chloride is obtained by the neutralization reaction between ammonia gas and hydrogen chloride or ammonia water and hydrochloric acid (reaction equation: NH3 + HCl → NH4Cl).
产品特性 Product Features
Ammonium chloride；Ammonium chloride
The aqueous solution is weakly acidic, and the acidity increases when heated. It is corrosive to ferrous metals and other metals, especially to copper, and has no corrosive effect on pig iron. Colorless crystal or white crystalline powder; odorless, salty and cold; hygroscopic.
产品用途 Product Usage
Mainly used in the manufacture of dry batteries and accumulators. It is the raw material for making other ammonium salts. Used as dyeing aid, plating bath additive, metal welding flux. It is also used for tinning and galvanizing, tanning leather, medicine, candles, adhesives, chromizing, precision casting.
Should be placed in a cool and dry place indoors, avoiding sun and rain.