| Characters:
It is white powdery granulars or
lumps, easy deliquescence, soluble in water and
showing alkaline aqueous solution and insoluble in
alcohol. Use :
It is mainy used in non
cyanogen electroplating, As a Complexing agent for
electroplating to Substitute sodium cyanide, it is
also used in Electroplating pre-treatment agent and
electroplating solution of Pyrophosphate, used as
components of detergents for cloth, cleaning agents
for metal surfaces and cleaners for bottles, used
for clay dispersant in ceramic industry, and for
Pigment and dye dispersant and buffer. In the dyeing
industry to remove a small amount of Fe 3 + in order
to improve the quality of dyeing.
Packing:
In 25kgs plastic woven bags,
or in 50LBs three layer paper with doule plastic bag
lining.
Specifications :
|
model |
Index name |
|
Export grade |
High-purity |
High class |
|
Tetra potassium pyro-phosphate
K4P2O7% |
96 |
98 |
96.0 |
|
Iron(Fe)% |
0.005 |
0.005 |
0.03 |
|
water insolubles % |
0.08 |
0.08 |
0.10 |
|
ph value(1% water solvent) |
10.51 |
|
Or thophosphate PO4 |
No distinct yellow color when react with
0.1NAgNO3 |
|
chloride (Cl)% |
0.45 |
- |
- |
|
heavy metal contents (Pb)% |
0.01 |
- |
- |
|
total phosphorus content(P2O5)% |
41 |
- |
- |
|
Product
TETRAPOTASSIUM
PYROPHOSPHATE 