Explanatory notes
… In the liquid state or in solution, they are electrolytes giving a metal or an analogous ion (ammonium (NH 4 + )) at … Certain oxides ( saline oxides ) may be regarded as resulting from the combination of a basic oxide with an … acidic, amphoteric or saline. (2) Other inorganic bases containing no oxygen, such as ammonia (heading 28.14), or …