Množina: ammonia

The ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion; SYN. ammonium ion.

Množina: ammonium carbonates

A carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds.
(NH4)2CO3 white, crystalline solid that readily sublimes at room temperature into its constituent gases: ammonia, carbon dioxide, and water. It was formerly used in smelling salts.

Množina: ammonium chlorides

A white salt used in dry cells; SYN. sal ammoniac.
Or sal ammoniac; NH4Cl a volatile salt that forms white crystals around volcanic craters. It is prepared synthetically for use in “dry-cell” batteries, fertilizers, and dyes.
A white crystalline volatile salt NH4Cl that is used in dry cells and as an expectorant — called also sal ammoniac.

Množina: ammonium sulfates

A colorless crystalline salt (NH4)2SO4 used chiefly as a fertilizer.