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Sodium Metabisulfite Tech Grade


Sodium metabisulfite (anhydrous sodium bisulfite, sodium pyrosulfite) is a white crystalline inorganic compound with the chemical formula Na2S2O5.

Product Package

Woven Bag, PE Bag, Kraft Paper Bag, in Nett 25Kgs, 50LBs, 1000Kgs.

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Product Usage

Sodium Metabisulfite is widely used as bleach, mordant, reductive agent, Rubber solidifying agent,  also can be used for organic synthesis, pharmaceutical and spices.                
1, Pharmaceutical industry:used for the production of chloroform, phenyl sulfone and benzaldehyde.
2, Rubber industry: used for coagulation agent.
3, Printing and dyeing industry : used for cotton bleaching after the dechlorination agent, cotton cooker.
4, Leather industry : used for leather processing, can used to make leather soft, plump, tough, with waterproof, bending, wear properties.
5, Chemical industry:used for the production of hydroxyaldehyde, hydroxylamine hydrochloride and so on.
6, Photographic industry: used in the developing agent and so on.
7, Food industry:used for bleaching agents, preservatives, vegetable pine agents, colour fixative and preservatives.
8, Also can used in pulluted water treatment agent and Bamboo and wood fiber bleaching agent and so on.

Product Index

        Product Name        Sodium Metabisulfite Tech Grade
AppearanceWhite crystal powder
Molecular Weight190.12
CAS NO .7681-57-4
Purity ( Na2S2O5 Content)≥96.0%
Valuation (SO2)≥65.0%
Heavy Metal ( Pb Content )--
As Content--
Se Content--
Fe Content≤0.003%
Water Insoluble≤0.05%
        PH        ≤4.0-4.6

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Professional production

CRE CHEM is professional in the oilfield chemical,Road ice melt, dust control, and food chemical area..


As specialists in logistics optimization with professional ability of cargo transport operation, Loading port inspection, customs clearance, we'll find the best solution to optimize deliveries worldwide to our end users.

Quality management

In 2009 the company successfully passed the EU REACH agreement, In 2010 the company passed through the FDA certification, our products passed SGS inspection and ISO9000 quality management system.In 2021 we pass ISO22000 food safety management system .

Competitive Price

Long term relationship means competitive price. Thanks to our high yearly distribution volume we can offer secured low prices.For orders, questions or quote requests please send an e-mail to We do not sell online due to constant price adjustments on products and transport costs.

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