Science / Chemistry / Sulfite: 1. The SO32- ion, formed by reaction of sulfurous acid with a base. 2. A compound containing the SO32- ion.

Potassium Metabisulfite

Entertainment / Photography / Potassium Metabisulfite: Acidifier used in fixers and stop baths. MORE

Sodium Metabisulfite

Entertainment / Photography / Sodium Metabisulfite: Used as an acidifying agent in acid fixing baths. MORE

Sodium Sulfite

Entertainment / Photography / Sodium Sulfite: Chemical commonly used as a preservative in many developing solutions. MORE

Sodium Hydrosulfite

Entertainment / Photography / Sodium Hydrosulfite: Used as a fogging agent in reversal processing. MORE

Sodium Bisulfite

Entertainment / Photography / Sodium Bisulfite: Chemical used in fixing baths as an acidifying agent. MORE


Entertainment / Photography / Hypo: Common name for a fixing agent, derived from an abbreviation of hyposulfite of soda, the misnomer applied to sodium thiosulfate during the 19th century. MORE