Sodium Tripolyphosphate
Molecularformula: Na5P3O10
Molecular Weight:367.86
Standard executed:GB/T9983-2004(TECH.GRADE);
【Properties】
White powder; Melting point622℃,Easily soluble in water;it has got salient chelating capacity to metal ions of Ca and Mgetc.
【Production】
STPP Production: 100ton/Day, 33,000ton/year;
【Packing and storage】
In 25KG、50KG、1000KG net WPP/PE bags.
【Technical Data】
| NO. | Indexes | Tech Grade | |
| 1 | Assay Na5P3O10 | %≥ | 94.0 |
| 2 | P2O5 | %≥ | 56.0 - 57.0 |
| 3 | Insoluble in water | %≤ | 0.10 |
| 4 | Iron（Fe） | %≤ | 0.015 |
| 5 | PH value（1% Waster solution） | %≤ | 9.2 - 10.0 |
| 6 | Whiteness | %≥ | 90 |
| 7 | Loss on ignition | %≤ | 1.0 |
| 8 | Bulk Density | %≤ | 0.45 - 0.83g/cm3 |
| 9 | Phasel | %≤ | 10 -30 |
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