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.
The sulfites on the label refer partly to sodium sulfite, a food and beverage preservative that was widely used in the first half of the 20th century, until a rash of adverse reactions prompted new regulation.he sulfites on the label refer partly to sodium sulfite, a food and beverage preservative that was widely used in the first half of the 20th century, until a rash of adverse reactions prompted new regulation.