TETRA POTASSIUM PYROPHOSPHATE (TKPP)
Chemical Name | Tetra Potassium Pyrophosphate |
Synonyms | TKPP |
Molecular Formula | K4P2O7 |
HS Code | 28352400 |
CAS NO. | 7320-34-5 |
Standard Executed | FCC/E450 |
Technical Specification
No. | Specifications | Unit | Food Grade Standard |
1 | Appearance | white powder | |
2 | K4P2O7 | % | ≥96.5 |
3 | Iron(Fe) | PPM | ≤10 |
4 | Water insoluble matter | % | ≤0.1 |
5 | Heavy Metals, (as Pb) | PPM | ≤10 |
6 | Arsenic(As) | PPM | ≤3 |
7 | F | PPM | 10 |
8 | PH Value | 10.5±0.5 | |
9 | PB | PPM | 4 |
10 | Ortho Phosphate | PASS | |
9 | Bulk density | g/ml | 0.6 |
10 | granularity | Powder |
Properties
Anhydrous tetra Potassium Phosphate is in white powder or granular. Relative density 2.534 g/cm3 and melting point 1109℃; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25℃,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.
Application
It can used as a buffering reagent as well as stabilizer for hydrogen peroxide; It can also be used as dispersion agent for ceramic, clay, latex and pigments etc.
Packaging
It is packed with polyethylene bag as inner, and a composite paper bag as the outer layer. The net weight of each bag is 25kg.
Storage and Transport
It should be stored in a dry,ventilative and clean warehouse, kept away from water and moisture, futhermore, it shoud be stored separately from poisonous.Its expiry date is 24 month.