Clay Dispersant 95% K4P2O7 Tetra Potassium Pyrophosphate
Product Description:
English name: Potassium Pyrophosphate (TKPP)
Molecular formula: K4P2O7
Molecular weight: 330.33
CAS NO.: 7320-34-5
HS-CODE: 28353990
Properties: white powder. It is hygroscopic in the air. The relative density is 2.534. The melting point is 1109°C. It loses two molecules of crystal water at 180℃, and all crystal water at 300℃. The properties are similar to sodium pyrophosphate, but the solubility is greater. It is soluble in water but insoluble in ethanol. The aqueous solution is alkaline. The solubility in 100g of water at 25oC is 187g. 1% aqueous solution pH=10.2
The main purpose of potassium pyrophosphate is to replace potassium cyanide for non-cyanide electroplating. With the development of national industrial modernization, the demand for potassium pyrophosphate is increasing. In industry, it is also used in surface treatment, high-end detergents, paint coatings, cleaning agents, dispersants, buffers, etc.; in the food industry, it is used as emulsifiers, tissue improvers, chelating agents, quality improvers, etc. Potassium pyrophosphate can also be prepared from dipotassium hydrogen phosphate.
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:
Used in non-cyanide electroplating to replace sodium cyanide as a complexing agent for electroplating. Used to prepare cleaning agents and detergents. It is also used as a clay dispersant, a buffer and dispersant for pigments and dyes, and an iron ion removal agent in bleaching and dyeing. In the food industry, it is used as an emulsifier, chelating agent, tissue improver, etc.
- Lead Time :
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Quantity(Metric Tons) 1 - 20 >20 Est. Time(days) 15 To be negotiated


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