Potassium metabisulfite
Inquiry
| Post Date: | Jul 26,2017 |
| Expiry Date: | Oct 24,2017 |
| Detailed Description: |
Cas No. :16731-55-8
Quantity: 20Metric Tons Specs:97% Payment Method: T/T AT ADVANCE Product characteristics: The Product was colorless crystal or white crystalline powder with the relative density of 2.34 .The melting point was 150-190 ℃ (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. Technical index Test item Unit Specification Test method K2S2O5 g/100g ≥97.2 Acc.Fcc IV p.322 SO2 g/100g ≥56.0 calculation K2S2O3 g/100g ≦ 0.1 ISO 3629-1996(E) Na g/100g ≦ 2 AAS Cl g/kg ≦ 0.5 IC pH-value(10%solution) - 3.8-4.8 RCA/Q-S-066 heavy metal（measured by Pb） mg/kg ≦10 AAS As mg/kg ≦ 1 AAS Cu mg/kg ≦1 ICP-AES Fe mg/kg ≦5 ICP-AES Hg mg/kg ≦0.1 AAS(cold vapour) Pb mg/kg ≦1 ICP-AES Se mg/kg ≦1 AAS Zn mg/kg ≦ 1 ICP-AES K2SO3 +K2SO4 mg/kg excess material calculation |
| CAS Registry Number: | 16731-55-8 |
| Synonyms: | ;Disulfurous acid,potassium salt (1:2);dipotassium oxidosulfanesulfonate oxide;sulfanesulfonic acid, hydroxy-, oxide, monopotassium salt; |
| Molecular Formula: | H2KO5S2 |
| Molecular Weight: | 185.2412 |
| Molecular Structure: | 
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| Company: | ZIBO CHANGCHENG CHEMICAL FACTORY [ China ] |
| Contact: | Wang Gang |
| Tel: | 0533-4689683 |
| Fax: | 0533-4689683 |
| Email: | zbccexport@yahoo.cn |
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