of, consisting of, or containing the monovalent group NH4– or the ion NH4+
ammonium compounds
ammonium in American English
(əˈmoʊniəm)
noun
the monovalent radical NH4, present in salts produced by the reaction of ammonia with an acid: its compounds are like those of the alkali metals
Word origin
ModL, coined by Berzelius < ammonia + -ium
All related terms of 'ammonium'
ammonium alum
Chemistry See aluminum ammonium sulfate
ammonium ion
the ion NH 4 + , formed from ammonia and present in aqueous solutions of ammonia and in many salts
ammonium carbamate
a white soluble crystalline compound produced by reaction between dry ammonia and carbon dioxide and used as a nitrogen fertilizer . Formula: (NH 4 )CO 2 NH 2
ammonium carbonate
an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate : used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH 4 )HCO 3 .(NH 4 )CO 2 NH 2
ammonium chloride
a white soluble crystalline solid used chiefly as an electrolyte in dry batteries and as a mordant and soldering flux . Formula: NH 4 Cl
ammonium hydroxide
a compound existing only in aqueous solution , formed when ammonia dissolves in water to form ammonium ions and hydroxide ions. Formula: NH 4 OH
ammonium nitrate
a colourless highly soluble crystalline solid used mainly as a fertilizer and in explosives and pyrotechnics . Formula: NH 4 NO 3
ammonium sulfate
an ammonium salt , (NH 4 ) 2 SO 4 , made chiefly from synthetic ammonia and used in making fertilizers , in treating water, etc.
ammonium sulphate
a white soluble crystalline solid used mainly as a fertilizer and in water purification. Formula: (NH 4 ) 2 SO 4
aluminum ammonium sulfate
a crystalline solid , AlNH 4 (SO 4 ) 2 ⋅12H 2 O, used chiefly as a size in the manufacture of paper; alum
quaternary ammonium compound
a type of ionic compound that can be regarded as derived from ammonium compounds by replacing the hydrogen atoms with organic groups