Assay : 99.5% Ammonium chloride is an inorganic compound with the formula NH4Cl. It is a white crystalline salt with a salty taste that is highly soluble in water and produces mildly acidic solutions. It has diverse applications, including serving as a nitrogen source in fertilizers, a flux in metal work, and an ingredient in cough medicines.Ammonium chloride is used in an aqueous solution to work on oil wells with clay swelling problems . In cosmetics it is used in hair shampoo,as a thickening agent in ammonium-based surfactant systems such as ammonium lauryl sulfate . Ammonium chloride is also used in the glue that bonds plywood .Ammonium chloride is also used in the textile and leather industry, in dyeing, tanning, textile printing and cotton clustering .