Industry Application Phosphate
TKPP-Tetra Potassium Pyrophosphate
Industry application
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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Product Detail
TKPP-Tetra Potassium Pyrophosphate
Molecular formula: K4P2O7
Molecular weight: 330.34
CAS Number: 7320-34-5
Standard:HG/T3591-1999
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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.
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Package
25 kgs bag,1000 kgs,1100 kgs, 1200 kgs jumbo bag,
Special mark could be Customized
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Specification
| NO |
Specifications |
National Standard |
Guaranteed Standard |
| 1 |
Appearance |
White powder or granular |
| 2 |
Assay % ≥ |
98.0 |
98.5 |
| 3 |
P2O5 % ≥ |
42 |
42.4 |
| 4 |
Iron(Fe) % ≤ |
0.1 |
0.003 |
| 5 |
Water insoluble matter % ≤ |
0.2 |
0.05 |
| 6 |
Heavy Metals,as Pb % ≤ |
0.003 |
0.002 |
| 7 |
Arsenic(As) % ≤ |
0.002 |
0.001 |
| 8 |
PH Value |
9.5—10.5 |
9.5—10.5 |
| 9 |
loss on ignition % ≤ |
0.2 |
0.2 |
| 10 |
Pb % ≤ |
0.0005 |
0.0002 |
| 11 |
Ortho Phosphate |
Pass test |
Pass test |
