chemical products
OUR PRODUCTS
OUR PRODUCTS
| Potassium pyrophosphate(TKPP) |
Molecular formula of anhydrous matter:K4P2O7
Molecular weight:330.34
Properties:White powder or block, apparent Sg 0.3 MIN, Melting point 1100°C, Soluble in water, insoluble in ethanol, solution
is basic liquid. Solubility(25°C: 187g/100g water).
Uses: Mainly used in cyanogen-free electroplating.It also can be used as ingredient and additive in all kinds of detergents and
cleaning agent, as clay dispersant in ceramic industry. Oe used in pre-treatment agent of plating and diphosphoric acid plating
liquid.
Packing: plastic lined woven bag, Net wt 50 Kg.
Technical index
|
NO.
|
Index name
|
Industrial grade
|
Food grade
|
|
1
|
Main content (K4P2O7) %=
|
95.0
|
95.0
|
|
2
|
? (Fe2+ Fe3+) %=
|
0.05
|
0.05
|
|
3
|
Water insoluble matter %=
|
0.20
|
0.1
|
|
4
|
PH value (2% solution) %=
|
10.3-10.9
|
10.5
|
|
5
|
Pb %=
|
0.01
|
0.000005
|
|
6
|
Heavy metals %=
|
___
|
0.00002
|
|
7
|
F %=
|
___
|
0.00001
|
|
8
|
As %=
|
___
|
0.000003
|
