|
Molecular formula: Na4P2O7
Standard: HG/T2968-1988
Properties: White powder, Relative Density 2.45, Melting point 890?, solution is weak basic fluid,PH value of 1% solution is
9.9-10.7.
Uses: used as washing auxiliary, bleaching of paper, degrease of wool and plating industry. Or used as buffer, emulsifier,
nutrient and quality improver in food industry
Packing: plastic lined woven bag, Net wt 25KG or 50KG, kept in dry and ventilating place.
Technical index
NO. |
Index name |
Industrial grade |
Food grade |
01 |
Main content (as Na 4 P 2 O 7 ) %= |
96.5 |
96.5 |
02 |
Phosphorus pentoxide ( P 2 O 5 ) %= |
51.5 |
51.5 |
03 |
Water insoluble matter %= |
0.20 |
0.20 |
04 |
PH value (1% solution) |
9.9-10.7 |
9.9-10.7 |
05 |
orthophosphate |
qualified |
qualified |
06 |
Heavy metals (as Pb) %= |
|
0.001 |
07 |
As %= |
|
0.0003 |
08 |
Fluoride (as F) %= |
|
0.005 |
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