a white soluble crystalline solid used chiefly as an electrolyte in dry batteries and as a mordant and soldering flux. Formula: NH4Cl
Also called: sal ammoniac
ammonium chloride in American English
a white crystalline compound, NH4Cl, produced by the reaction of ammonia with hydrochloric acid: it is used in medicine to correct alkalosis, and also in dry cells, fertilizers, dyes, etc.; sal ammoniac