Definition of ammonium in English:


Syllabification: am·mo·ni·um
Pronunciation: /əˈmōnēəm


[as modifier] Chemistry
  • The cation NH4+, present in solutions of ammonia and in salts derived from ammonia.
    More example sentences
    • Amides are hydrolysed to ammonium salts with catalysis by acids or alkalis.
    • The perchloric acid then neutralises the alkali ammonia forming crystals of ammonium perchlorate salt.
    • And it contained the inorganic salts manganese sulphate, potassium chloride and ammonium sulphate.


early 19th century: from ammonia + -ium.

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