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.
Calcium sulfite is the calcium salt derived from sulfuric acid. It is used as a food preservative in fruit-based products. Calcium sulfite has a molar mass of about 120.17 grams per mole, and it has a boiling point of 1,112 degrees Fahrenheit.