Molecular formula:K4P2O7
Molecular weight:330
Content:95%
Density:2.534g/Cubic centimetre
Specification:food grade、tech grade。
CAS NO.:7320-34-5
Properties：
Anhydrous tetra potassium phosphate is in white powder.Melting point at 1109C; 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.
Purpose
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.
Packing
Plastic woven bag. Net weight 25 Kg,Store at a cool ,dry and well ventilated place.
Standard
Item |
Unit |
Specification |
|
|
Tech grade |
Food grade |
||
|
Appearance |
- |
White powder |
White powder |
|
Main content |
% |
95 min |
96 min |
|
Iron as Fe: |
% |
0.05 max |
0.03 min |
|
Water insoluble: |
% |
0.2 max |
0.1 max |
|
Heavy metal as Pb: |
% |
-- |
0.001 |
|
Arsenic as As: |
% |
-- |
0.0003 |
|
Ph of 1% water solution: |
- |
10.0-10.7 |
10.0-10.7 |
|
Ortho phosphate: |
% |
Pass |
Pass |
Tag: TKPP, Phosphate
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