Complaint
Introduction (Potassium Metabisulfite cas 7558-79-4 )
Product characteristics: The Product was colorless crystal or white crystalline powder with the relative density of 2.34 .The melting point was 150-190 ºC (decomposition). The product had a flavor of sulfur dioxide and soluble in water with acidic aqueous solution, it was not soluble in ethanol. Sulfur dioxide was released from acidic solution and oxidized to sulfate in the air.
Products Parameters:
| 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 |
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.
Packing and shipping:
Packing Details:
Packaging: Packages: 25kg/bag,It can also be packaged according to customer needs, and can be affixed with your LOGO and other information.
Shipment:we have established solid cooperation with DHL,TNT,Fedex,UPS,EMS and air freight as well as sea shipping companies for many years,and it is possiable that we use your own shipping agent too.
Company introduction:
Mingray Technology Group Co., Ltd. is a chemical operating enterprise which authorized and approved by MOFCOM which was established in 2009. Our company own variety of export products which are widely used in chemical, pharmaceuticals, textile printing & dyeing, leather processing, fertilizer, water treatment, construction industry, food &feed additives and other areas.Sodium sulfide, sodium carbonate, oxalic acid, citric acid, PAC are partial strong products. For every years, we stick to business philosophy of" integrity, deligence, fighting, innovation ", and have winning customers praise with our superior quality, favorable price and excellent service.Our service:
FAQ:
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