Potassium Sulfite
Used in cosmetic products as antioxidant, hair waving or straightening, preservative and reducing. Potassium Sulfite is an inorganic salt.
- Allowed with restrictions, Annex III/99
- Allowed preservative, Annex V/9
Annex III/99: (a) 0.67% (as free SO2) / (b) 6.7% (as free SO2) / (c) 0.45% (as free SO2) / (d) 0.40% (as free SO2) | Annex V/9: 0.2% (as free SO2)
The chemical behind this ingredient
Structure, properties, safety data and price information live on the chemical page.
IUPAC name: dipotassium, sulfite
- 2D structure and identifiers
- Measured and computed properties
- GHS safety summary
- Suppliers, prices and trade data
Potassium Sulfite suppliers
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Frequently asked questions
What is Potassium Sulfite used for in cosmetics?
Potassium Sulfite is used in cosmetic products as antioxidant, hair waving or straightening, preservative and reducing. Potassium Sulfite is an inorganic salt.
Is Potassium Sulfite restricted in cosmetics in the EU?
Potassium Sulfite is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex III/99 (allowed with restrictions), Annex V/9 (allowed preservative). Annex III/99: (a) 0.67% (as free SO2) / (b) 6.7% (as free SO2) / (c) 0.45% (as free SO2) / (d) 0.40% (as free SO2) | Annex V/9: 0.2% (as free SO2) Always check the full annex entry for the conditions of use.
What is the CAS number of Potassium Sulfite?
Potassium Sulfite is listed with CAS numbers 10117-38-1 and 23873-77-0 and EC number 233-321-1.
Where can I buy Potassium Sulfite?
8 suppliers list Potassium sulfite on CompoundList. Compare them below or post a buy request with your grade and quantity.