Best Sodium Metabisulfite Solution From 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 has been providing sodium metabisulfite solution worldwide. Our Na2S2O5 industrial grade product has a wide range of usages in various industries for different purpose, such as water treatment, mineral dressing agent, deoxidizer and sulfonating agent in chemical and medical fields.


Sodium metabisulfite Food Grade picture

Sodium Metabisulfite Solution

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


Technical Data Sheet

Sodium Metabisulfite Industrial Grade




Test Result

Content (as Na2S2O5), % ≥



Iron (as Fe), % ≤



Arsenic (as As), % ≤



Heavy Metal (Pb), w/% ≤



PH Value



Water Insoluble, % ≤



Sodium Metabisulfite Applications Industrial Grade

Sodium Metabisulfite Mining Industry

It is used as mineral dressing agent in mining industry (gold, copper, etc.).

Sodium Metabisulfite Flavor and Fragrance 

It is used for producing hydrocarbon vanilla, hydrocarbon amine hydro-chloride, etc in chemical and flavor & fragrance industries

Sodium Pyrosulfite Pharmaceutical

It is used for further producing chloroform, sulfetrone, benzaldehyde, etc. in pharmaceutical industry.

Sodium Metabisulfite Photographic

It is used as reductant of the developing agent and protective agent for the fixative in photographic industry.

Sodium Pyrosulfite Leather Industry

It is used as depilating agent, softening agent and wear-resisting agent in leather industry. It is also used for coagulative agent in rubber industry.

Sodium Pyrosulfite Printing and Dyeing

It is used as dechlorinating agent, mordant and boiling agent for cotton in printing and dyeing industry.

Sodium Metabisulfite Handling and Storage

Sodium Metabisulfite Solution 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 Packaging and Transportation China

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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