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. a salt of sulfurous acid. Sulfites are used as preservatives for salad, fresh fruit and vegetables, wine, beer, and dried fruit. In susceptible individuals, especially those with asthma, they can cause a severe reaction; because of this their use has been curtailed, and foods that contain them must be labeled.