Eat or Avoid
E539

Sodium Thiosulfate

Also known as: Sodium hyposulphite, Hyposulphite of soda, Hypo

Acidity RegulatorsAntioxidants

Safety rating

Generally Safe

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Purpose and Function

Sodium thiosulfate is used as an acidity regulator, and commonly to neutralize chlorine in water used for food preparation.

Commonly found in

  • Water treatment in food processing

Key functions

  • Regulates pH
  • Neutralizes chlorine in processing water

Potential Risks and Side Effects

  1. 01High concentrations may cause gastrointestinal discomfort — nausea or diarrhea
  2. 02Rare allergic reactions

References

    Related Additives