Product Name: Potassium Pyrophosphate(TKPP)
Molecular formula: K4P2O7
Molecular weight: 330.34
CAS NO.: 7320-34-5
HS CODE: 28353990
Properties:
potassium phosphate is in white powder. Relative density 2.534 and melting point 1109ºC; 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.
Specifications Electron Grade:HG/T 3591-1999
| INSPECT ION ITEM |
UNIT |
ELECTRON GRADE |
| Assay(K4P2O7) |
≥% |
98.0 |
| Iron |
≤% |
0.01 |
| Insoluble matter in water |
≤% |
0.10 |
| PH Value |
- |
10.5±0.5 |
| Heavy Metals(as Pb) |
≤% |
0.003 |
| rtho Phosphate |
|
Pass test |
Specifications Industrial Grade:ZB/TG 12006-88
| INSPECT ION ITEM |
UNIT |
FINE GRADE |
FIRST GRADE |
REGULAR GRADE |
| Assay(K4P2O7) |
≥% |
96.0 |
95.0 |
94.0 |
| Iron |
≤% |
0.03 |
0.05 |
0.10 |
| Insoluble matter in water |
≤% |
0.10 |
0.20 |
0.25 |
| PH Value |
- |
10.0-10.7 |
| Phosphate |
|
Pass test |
Packing :
25kgs woven bag lined with plastic bag or the demanding of customer.
Storage and transport:
It should be stored in a dry .ntilative and clean warehouse; kept away from moisture and hot, Furthermore, it should be stored separately from poisonous substances.
Uses :
It mainly applied to electroplating without cyanate, industrial or household detergents; 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.
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