Ammonium chloride: Industry grade, Feed grade, Food grade, Medical grade, etc. Ammonium chloride:Industry grade, Feed grade, Food grade, Medical grade, etc.Molecular Formula: NH4ClN.W.: ... in a mixture of ice, water, and ammonium chloride. Ammonium chloride solutions with ammonia are used as buffer ... a very crisp texture.Other ApplicationsAmmonium chloride is used in a ~5% aqueous solution to work on ...