STPP
1 used as one of the main auxiliaries for synthetic detergent
2 white granule or powder
3.best seller
Sodium Tripolyphosphate (STTP)
Sodium Tripolyphosphate(STPP) 94% Tech Grade
Na5P3O10------------------------------------ 94.0%Min
P2 O 5 ----------------- -----------------------57.0%Min
Water Insoluble Matter ---------------------0.15%Max
Iron(Fe) ---------------------------------------0.015%Max
PH value (1% water solution)--------------9.2-10.0
Whiteness-------------------------------------92%Min
Ignition loss-----------------------------------1.0
Density (g/cm3) ------------------------------0.35-0.9
Sodium Tripolyphosphate85%,94%,96%
specification:
GB9983-2004
item | superior quality | First grade | qualified product |
whiteness,% | 90.0 min | 85.0 | 80.0 |
P2O5,% | 57.0 min | 56.5 | 55.0 |
Na5P3O10,% | 96.0 min | 90.0 | 85.0 |
water insolubles,% | 0.10 max | 0.10 | 0.15 |
Fe,% | 0.007 max | 0.015 | 0.030 |
PH | 9.2-10.0 |
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