7320-34-5 TKPP Anhydrous Tetrapotassium Pyrophosphate For Buffering Reagent
7320-34-5 TKPP Anhydrous Tetrapotassium Pyrophosphate For Buffering Reagent 230-785-7
Potassium pyrophosphate is an inorganic substance with molecular formula of k4p2o7 and molecular weight of 330.33. It is white powder or block, soluble in water but insoluble in ethanol. The aqueous solution is alkaline. The solubility of 100g water is 187G at 25 ℃.
Potassium pyrophosphate sh colorless crystal or white powder. Moisture absorption in the air. Density 2.33. The binary crystal water was lost at 180 ℃ and all the crystallized water was lost at 300 ℃. The properties are similar to sodium pyrophosphate, but the solubility is large. Soluble in water, not ethanol. It is used for tin plating, dyeing, refining clay, etc. The product is made by melting the potassium hydrogen phosphate and losing the water molecule.
Parameters:
| Specifications | Guaranteed | Analysis results |
| Main contents %≥ | 96.5 | 98.2 |
| Phosphorus pentoxide %≤ | 42.7 | |
| K2O | 54.8 | |
| PH | 10.5±0.5 | 10.34 |
| Heavy metals, as Pb %≤ | 0.001 | 0.0005 |
| Arsenic, As %≤ | 0.0003 | 0.00012 |
| Fluoride as F %≤ | 0.001 | 0.0004 |
| Loss on ignition %≤ | 0.5 | 0.028 |
| Pb %≤ | 0.0004 | 0.0001 |
| Water insoluble % | 0.2 | 0.03 |
| Ortho Phosphate | Pass test |
Application:
Potassium pyrophosphate is mainly used to replace potassium cyanide for cyanide free electroplating. With the development of national industrial modernization, the demand for potassium pyrophosphate is increasing. In industry, it is also used for surface treatment, high-grade detergent, paint, detergent, dispersant, buffer, etc.; in food industry, it is used as emulsifier, tissue modifier, chelating agent, quality improver, etc. Potassium pyrophosphate can also be prepared from dipotassium hydrogen phosphate.
Supply Ability
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Quantity(Metric Tons) 1 - 20 >20 Est. Time(days) 15 To be negotiated
Packaging & Delivery
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