Potassium Metabisulfite | High Purity Antioxidant and Preservative Ingredient for Food & Pharmaceutical Applications
- Wonsen
- China
- 30 days
- Always Available
Potassium Metabisulfite is a high-quality antioxidant and preservative ingredient widely used in food, pharmaceutical, and chemical industries. We provide reliable Potassium Metabisulfite raw material solutions with consistent quality and professional service.
Potassium Metabisulfite
(CDE REGISTRATION NO.: F20240000174)
Name: Potassium Metabisulfite
Other name: Potassium Pyrosulfite
M.F.: K2S2O5
M.W.: 222.32 (Average value)
CAS No.: 16731-55-8
Packaging: 1kg/bag/carton; 5kg/bag/carton; 20kg/bag/drum
Appearance:
White or almost white powder, or colourless crystals. Freely soluble in water, slightly soluble in ethanol(96 per cent).
Quality Standard: USP2024; EP11.0
Application:
It can be used as an antioxidant in medicines, food additives, and preservatives in cosmetics.
Application Dosage/ % Application Injection 0.001-0.05% Antioxidant/Stabilizer OSD 0.05-1% Antioxidant/Stabilizer Mesalazine Enemas 0.1-0.5% Antioxidant/Stabilizer
Incompatibility:
Potassium Metabisulfite is incompatible with strong acids, water, and most common metals. It can react with nitrite and sodium nitrate at room temperature, sometimes producing flames; and explosions can occur when there is water; it reacts with acid to escape sulfur dioxide. Potassium Metabisulfite can also fade some colorants and affect the stability of vitamins.
Safety:The dosage as an antioxidant is generally considered safe. Exceeding the recommended dosage may cause skin damage, such as adverse reactions, allergies, and irritation.
Storage:
Potassium Metabisulfite decomposes at temperatures above 150°C. In the air, especially in a humid environment, it is easily oxidized to potassium sulfate. In aqueous solution, Potassium Metabisulfite generates potassium bisulfite, which has a strong reducing ability.
Preserve in well-fitted, tight containers, avoid exposure to excessive heat, protected from light.








