K4P2O7 Anhydrous CAS 7320 34 5 TKPP For Tissue Improver
Product Description:
English name: potassium pyrophosphate
English alias: Diphosphoric acid, tetrapotassium salt; Potassium Pyrophosphate; Tetra-Potassium Pyrophosphate; TKPP; Tetrapotassium pyrophosphate; tetrapotassium diphosphate; diphosphoric acid, monopotassium salt
Molecular formula: K4P2O7
Molecular weight: 330.33
Specification: industrial-grade: in line with ZB/TG12006-88;
Food grade: in line with FAO / WHO, 1980; customer requirements
Packing: 25Kg double plastic inner woven bag; customer requirements
Uses: Industrially used for non-cyanide electroplating, surface treatment, high-grade detergents, paint coatings, cleaning agents, dispersants, buffers
Etc.; food-grade emulsifiers, tissue improvers, chelating agents, quality improvers, etc. used in food processing
Properties:
Potassium pyrophosphate has all the properties of other polymeric phosphates, similar to sodium pyrophosphate, but has greater solubility and can chelate with alkaline earth metals and heavy metal ions; it can form stable complexes with Ca2+ and Mg2+ in hard water. Soften hard water, improve washing capacity, and remove dirt. It can also form a protective film on the surface of iron, lead, zinc, aluminum and other metals; pyrophosphate ion (P2O74-) has a strong dispersing ability for finely dispersed solids, and can promote the uniform mixing of fine and trace substances. Potassium pyrophosphate with high complexing power (more pyrophosphate ions) has a stable pH buffering capacity, which can maintain the pH of the solution for a long time and reduce the amount of potassium pyrophosphate added.
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:
Mainly used for non-cyanide electroplating, instead of sodium cyanide as a complexing agent for electroplating. It is also used as a pretreatment agent for electroplating and as a pyrophosphate electroplating solution. Preparation of detergent components for clothing, metal surface cleaning agents and bottle detergent components, additives for various cleaning agents. Used as a clay dispersant in the ceramic industry, as a dispersant and buffer for pigments and dyes. The bleaching and dyeing industry is used to remove a small amount of ferric ions in the water to improve the quality of bleaching and dyeing.
- Lead Time :
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Quantity(Metric Tons) 1 - 20 >20 Est. Time(days) 15 To be negotiated


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