Ammonium Chloride
White crystalline salt that is highly soluble in water. Solutions of ammonium chloride are mildly acidic
Uses
Its principal uses are as a nitrogen supply in fertilizers and as an electrolyte in dry cells, and it is also extensively employed as a constituent of galvanizing, tinning, and soldering fluxes to remove oxide coatings from metals and thereby improve the adhesion of the solders.