Sodium Metabisulphite

Sodium MetabisulphiteSodium metabisulphite(or sodium metabisulfite) is an inorganic compound composed of sodium, sulfur and oxygen. Its chemical formula is Na2S2O5. It typically comes in a white, or yellowish-white crystalline powder. It easily dissolves in water, which leaves that familiar sulfur (rotten egg) smell.


Sodium Metabisulphite Industrial Uses
Sodium metabisulfite exists in both food-grade and non-food-grade forms. The non-food-grade form is an industrial bleaching and reducing agent; it is also used to remove excess chlorine from drinking water and as a photographic developing and fixing bath agent.
Sodium Metabisulphite Food Grade Uses
Sodium metabisulphite is used as a preservative in foods such as baked goods, jams, wines, dried fruit and many sauces. Sulfites can be added before or after cooking. Sodium metabisulphite's acidic and preservative properties also make it an effective substitute for sodium bisulfite.


Content(as SO2) %≥ 65 65
Water-insoluble Matter, % ≤ 0.05 0.05
Iron(Fe), % ≤ 0.003 0.003
PH 4.0-4.6 4.0-4.6
Arsenic (As), % ≤   0.0002
Lead (Pb), % ≤   0.002

•In 25Kg polypropylene woven bag lined with PVC bag.
Storage and Transportation:
• Store in a cool, dry, well-ventilated area away from water, ice, acids and oxidizing agents. It will release sulfur dioxide gas slowly at ambient temperatures.
• Keep in a tightly closed container.

Other Hot Product: Sodium Bicarbonate