E223 Synthetic origin Medium danger Bleaching agents Flour treatment agents Preservatives Other names for the additive (synonyms) E-223, sodium pyrosulphite, sodium pyrosulphate, E 223
Codex Alimentarius: CXG 36-1989 Class names and the international numbering system for food additives Member countries FAO, WHO Codex Alimentarius: CXG 36-1989
