Tetrapotassium pyrophosphate
Molecular formula: K4P2O7
Molecular weight: 330.34
Standard executed: HG/T3591-1999
CAS Number: 7320-34-5
Properties:
Anhydrous tetra potassium phosphate is in white powder or granular. Relative density 2.534 g/cm3 and melting point 1109¡ãC; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25¡ãC,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.
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.
Packing and storage:
I Packed in 25 Kg, 50 Kg or 1000 Kg net bags. It must be stored in places well ventilated and dry.
Guaranteed Technical Specifications:
|
NO
|
Specifications
|
Industrial Grade
|
Food Grade
|
|
1
|
Appearance
|
White powder or granular
|
|
2
|
Assay % ¡Ý
|
96.0
|
96.0
|
|
3
|
Iron(Fe) % ¡Ü
|
0.03
|
0.03
|
|
4
|
Water insoluble matter % ¡Ü
|
0.1
|
0.1
|
|
5
|
Heavy Metals,as Pb % ¡Ü
|
|
0.001
|
|
6
|
Arsenic(As) % ¡Ü
|
|
0.0003
|
|
7
|
PH Value
|
10.0-10.7
|
|
8
|
Ortho Phosphate
|
Pass test
|
|
