Dictionary entry overview: What does isle mean? â¢ ISLE (noun) The noun ISLE has 1 sense: 1. a small island Familiarity information: ISLE used as a noun is very rare.
The sulfate ion is SO42- The sulfite ion is SO32- and is more basic that sulfate.
Sulfites are a group of chemical agents added to food, beer and wine that prevent bacterial growth. The term sulfites includes sulfur dioxide and the salts formed from sulfurous acid, such as sodium sulfite or potassium metabisulfite.