| Customization: | Available |
|---|---|
| CAS No.: | 16731-55-8 |
| Formula: | K2s2o5 |
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Potassium metabisulfite is colorless or white crystalline powder or granules, with sulfur dioxide smell. It is stable in dry air, but in moist air, it will release sulfur dioxide. Potassium metabisulphite is easily soluble in water, slightly soluble in alcohol, but insoluble in diethyl ether.
Specification:| Test Item | Unit | The Standard |
| Appearance | -- | Colorless or white crystalline powder or granules |
| Assay K2S2O5 | % | 97.2Min. |
| SO2 | % | 56.0Min. |
| K2S2O3 | % | 0.1Max. |
| Na | % | 2Max. |
| Cl | % | 0.5Max. |
| pH | -- | 3.8-4.8 |
| Heavy Metals(as Pb) | ppm | 10Max. |
| As | ppm | 1Max. |
| Cu | ppm | 1Max. |
| Fe | ppm | 5Max. |
| Hg | ppm | 0.1Max. |
| Pb | ppm | 1Max. |
| Se | ppm | 1Max. |
| Zn | ppm | 1Max. |
Potassium metabisulfite is mainly used in food industry as bleach agent, preservatives and antioxidants, used in beer, wines, juice, etc. It is also used for the preparation of photographic developing solution, reducing agent and bacteriostatic agent.
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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