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 Products
Sodium pyrophosphate
[Molecular formula]: Na4P2O7
[Executive standard]: HG/T2968-1988
[Properties]: White powder,easily soluble in water, insoluble in alcohol, density: 2.45, relative density:2.45, melting point: 890°C. Water solution is alkaline, PH of 1% solution is 9.9-10.7.
[Use]: It is mainly used as detergent, electroplating etc. For food grade it is mainly used as food additive, nourishment etc.
[Technical specification]:
No.
|
Index name |
Industrial grade |
Food grade |
01 |
Main content(based on Na4P2O7) %≥ |
96.5 |
96.5 |
02 |
Phosphorus pentoxide ( P2O5 ) %≥ |
51.5 |
51.5 |
03 |
Water insoluble %≤ |
0.20 |
0.20 |
04 |
PH value(1% aqueous solution) |
9.9-10.7 |
9.9-10.7 |
05 |
Orthophosphate |
In accordance with test |
In accordance with test |
06 |
Heavy metal(based on Pb) %≤ |
|
0.001 |
07 |
Arsenic(based on As) %≤ |
|
0.0003 |
08 |
Fluoride(based on F) %≤ |
|
0.005 |
09 |
Fineness(pass 60 mesh sieve) %≥
|
90 |
90 |
[Packing]: Woven bag with plastic lining, NW: 25 kg or 50kg. Stored in draughty and dry place.
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