Ammonium chloride (referred to as "ammonium chloride", also known as halogen sand, chemical formula: NH4Cl) is a colorless cubic crystal or white crystalline powder. Odorless, taste salty, cool and slightly bitter; have hygroscopicity. Soluble in water, slightly soluble in ethanol but insoluble in acetone and ether. The aqueous solution is weakly acidic, and the acidity increases when heated.

In industry, it is mainly used in battery, electroplating, dyeing and spinning, leather tanning, medicine and other industries. In agriculture, it is directly used as nitrogen fertilizer or compound fertilizer.

Nature

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.

Physical and chemical properties

Chemical formula: NH4Cl

Relative molecular mass: 53.49

Character

Colorless crystal or white granular powder, it is a kind of strong electrolyte, which dissolves in water and ionizes to produce ammonium ions and chloride ions. When ammonia gas and hydrogen chloride combine to form ammonium chloride, there will be white smoke. Odorless. The taste is salty, cool and slightly bitter. Soluble in water, slightly soluble in ethanol, soluble in liquid ammonia, insoluble in acetone and ether.

USE

1. It can be used as a raw material to manufacture dry batteries and storage batteries, other ammonium salts, electroplating additives, and metal welding fluxes;

2. Used as dyeing aids, tinning and galvanizing, leather tanning, medicine, candle making, adhesives, chromizing, precision casting;

3. Used in medicine, dry battery, fabric printing and dyeing, detergent;

Storage and transportation

It should be stored in a cool, ventilated and dry warehouse, and be protected from moisture. Avoid co-storage and transportation with acids and alkalis. Protect from rain and hot sun during transportation. Handle with care when loading and unloading to prevent damage to the package. In case of fire, water, sand, and carbon dioxide fire extinguishers can be used to extinguish the fire.