SODIUM HYDROGEN SULFITE
Prepared at the 53rd JECFA (1999) and published in FNP 52 Add 7 (1999), superseding tentative specifications prepared at the 51st JECFA (1998),
published in FNP 52 Add 6 (1998). Group ADI 0-0.7 mg/kg bw as SO2 for sulfites established at the 51st JECFA in 1998.
SYNONYMS INS No. 222
DEFINITION
Chemical names Sodium hydrogen sulfite, sodium bisulfite
C.A.S. number 7631-90-5
Chemical formula NaHSO3
Formula weight 104.06
Assay Not less than 58.5% and not more than 67.4% of SO2
DESCRIPTION White crystals or granular powder having an odour of sulfur dioxide
FUNCTIONAL USES Antibrowning agent, antioxidant, preservative
