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.
Sulfite (also sulphite) is a compound that contain the sulfite ion SO 3. Sulfites are salts or esters of sulfurous acid (H 2 SO 3), formed by replacing one or both of the hydrogens with a metal or a radical as in sodium sulfite, Na 2 SO 3.