Potassium Pyrophosphate
| English name: | Potassium pyrophosphate |
| Molecular formula: | K4P2O7 |
| Molecular weight: | 330.05 |
| CAS NO.: | 7320-34-5 |
This product is white block solid or powdery or particle solid, easily deliquescence, easily soluble in water, aqueous solution is alkaline, insoluble in alcohol. Mainly used for non-cyanide plating, surface treatment, top-grade detergent, paint coating, cleaning agent, dispersing agent and buffer in industry; In food grade, it is mainly used as the emulsifier, organization improver, chelant and quality ameliorant in food processing.
| Model | Index name | ||
| Export grade | Plating grade | ||
| Tetra potassium pyro-phosphate K4P2O7% | 96 | 98 | |
| Iron(Fe)% | 0.005 | 0.005 | |
| water insolubles % | 0.08 | 0.08 | |
| ph value(1% water solvent) | 10.51±1 | ||
| Or thophosphate PO4 | No distinct yellow color when react with 0.1NAgNO3 | ||
| chloride (Cl)% | 0.45 | - | |
| heavy metal contents (Pb)% | 0.01 | - | |
| total phosphorus content(P2O5)% | 41 | - | |
