| Customization: | Available |
|---|---|
| CAS No.: | 16731-55-8 |
| Formula: | K2s2o5 |
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1. Use as a food bleach, preservative and antioxidant. Long-term consumption of excessive sulfur dioxide food, will cause serious damage to the body, and may even cause cancer.
2. Used as analytical reagent. It is also used as a developing agent, reducing agent and bacterial inhibitor.
3. Potassium metabisulfite is used as an additive in thiosulfate silver plating, and its sodium salt is also used in the treatment of chromium-containing wastewater.
| Test item | Unit | Specification |
| K2S2O5 | g/100g | 98% min |
| SO2 | g/100g | 56.0 min |
| K2S2O3 | g/100g | 0.1 max |
| Na | g/100g | 2 max |
| Cl | g/kg | 0.5 max |
| pH-value(10%solution) | - | 3.8-4.8 |
| heavy metal(measured by Pb) | mg/kg | 10 max |
| As | mg/kg | 1 max |
| Cu | mg/kg | 1 max |
| Fe | mg/kg | 5 max |
| Hg | mg/kg | 0.1 max |
| Pb | mg/kg | 1 max |
| Se | mg/kg | 1 max |
| Zn | mg/kg | 1 max |
| K2SO3 +K2SO4 | mg/kg | excess material |
Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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