what is the common name for nh4cl
Ammonium chloride, an inorganic compound with the formula NH 4 Cl, is a white crystalline salt, highly soluble in water. Solutions of ammonium chloride are mildly acidic. Sal ammoniac is a name of the natural, mineralogical form of ammonium chloride.The mineral is commonly formed on burning coal dumps, due to condensation of coal-derived gases.It is also found around some types of volcanic vents. 5% by weight solution of ammonium chloride in water has a pH in the range 4.6 to 6.0. Some of ammonium chloride's reactions with other chemicals are endothermic, for example its reaction with barium hydroxide, and its dissolving in water.