STPP(sodium tripolyphosphate)
Specification:
|
Items |
Index |
|
|
Tech. Grade |
Food Grade |
|
|
Na5P3O10 (%): |
94%Min |
95%Min |
|
P2O5 (%): |
57%Max |
57%Max |
|
Insolubles in water (%): |
0.15%Max |
0.05%Max |
|
Fe (%): |
0.01%Max |
0.01%Max |
|
Ph (1% solution): |
9.2-10 |
9.5-10 |
|
Heavy Metal (As Pb) (%): |
|
0.001%Max |
|
Arsenic (As) (%): |
|
0.0003%Max |
|
Fluoride(F) (%): |
|
0.003%Max |
|
Whiteness(%): |
90%Min |
90%Min |