Buy Sodium Metabisulfite Food Grade China

Sodium Metabisulfite (or Sodium pyrosulfite) is an inorganic compound consisted of sodium, sulfur and oxygen, which is a white, or yellowish-white crystalline powder that easily dissolves in water. OLE Chemical produces high-quality Na2S2O5. Sodium metabisulfite food grade is widely used as preservative, bleaching or leavening agent, and antioxidant in food.

Sodium metabisulfite Food Grade picture

Sodium Metabisulfite Properties

CAS Registry Number: 7681-57-4

Chemical formula:Na2S2O5, Na-O-(S=O)-O-(S=O)-O-Na

Molar mass:190.107 g/mol

Appearance:White to Yellow powder

Sodium Metabisulfite Food Grade Technical Data Sheet

Technical Data Sheet

Sodium Metabisulfite Food Grade




Test Result

Content (as Na2S2O5), % ≥



Iron (as Fe), % ≤



Arsenic (as As), % ≤



Heavy Metal (Pb), w/% ≤



PH Value




Pass Test


Sodium Metabisulfite Food Grade Applications

Sodium Pyrosulfite Sterilizer

It is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine.

Sodium Metabisulfite Antioxidant

It is used as a preservative and antioxidant for food, such as seafood, dried food, fruits, juices, etc.

Sodium Metabisulfite in Bread

It is used as leavening agent in biscuit, baked food and bread to ferment.

Sodium Metabisulfite Handling and Storage

Sodium Pyrosulfite Handling and Storage

Prior to working with Sodium Metabisulfite you should be trained on its special handling and storage. Contact with moisture or water will release sulfur dioxide gas.  The bulk materials must be stored in a cool and well-ventilated area to avoid heat, moisture or combustible materials and segregate from acids and oxidizers.

Sodium Metabisulfite Food Grade Packaging and Transportation

Our Sodium Metabisulfite can be packed to 25 KG / 50 KG / 1000 KG per bag, and the packaging is polypropylene woven bag lined with polyethylene plastic bag, or paper-plastic composite bag, kraft bag, etc. Any other packaging can be customized according to clients’ requirements.

Sodium Metabisulfite Food Grade Packaging and Transportation

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