| CAS No.: | 7681-57-4 |
|---|---|
| Formula: | Na2s2o5 |
| EINECS: | 231-673-0 |
| Certification: | CIQ, ISO |
| Purity: | 90%~99% |
| Type: | Sodium Metabisulphite |
| Customization: |
|---|
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Audited Supplier Properties:
White or slightly yellow crystalline powder.
| Appearance | White Powder |
| Purity as Na2S2O5 | 96.5% Minimum |
| SO2 | 65% Minimum |
| Water Insoluble Material | 0.05% Maximum |
| Iron(Fe) | 0.003% Maximum |
| PH | 4.0-4.8 |
| Heavy Metals as pb | 0.0005% Maximum |
In industry, sodium metabisulfite is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments. Sodium metabisulfite is used in the chemical and pharmaceutical industries for the production of insurance powder, sulfamethazine, analgin, caprolactam, etc., as well as the purification of phenylpropanesulfone and benzaldehyde. The photographic industry is used as an ingredient for fixing agents. Perfume industry is used to produce vanillin. It is used as preservative in brewing industry, rubber coagulant and dechlorination agent after cotton bleaching. Organic intermediates, dyes and tanning are used as reducing agents, electroplating industry, wastewater treatment of oil fields and beneficiation agent of mines.
Store in tightly closed original bags at cool, dry and ventilated place.
Glad to take this opportunity to introduce our service to you as follows:
•Supply of all kinds of food ingredients and raw materials;
•Price trend and purchase advice;
•Technical support;
•Value-added service, say, subpackage;
• Mixed container shipment arrangement;
•Logistic, storage.
Our advantages are:
1 Professional: with more than 15years food additives export experience, we understand our customers' needs easily and completely;
2 Quality and delivery: quality is the life of our company. We put quality as our first consideration in any single order. We only supply our customers the first-class products.
Normally we can arrange all the delivery by sea, by air or by train within the stipulated period. If by sea, we put cardboard in all sides of the container in order to avoid moist; if possible, we palletize all products.
3 Credibility: credibility is the base of our company. We may be not the best, but we are the one as what we have said.
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Audited Supplier 
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