Our advantage:
1. Factory price,
2. Good Quality,
3. Free sample,
4. ISO Cerficate,
5. A long stable supplier,
6. Good support to you
`````````````````````````````````````````````````````````````````
Specifications
Sodium Tripolyphosphate, STPP, 94%
1. Grade: Technical Grade
2. Packing: 25kgs/bag
3. Shelf life: 2 years
Best quality Sodium Tripolyphosphate powder, Technical Grade, STPP, 94%
Detailed Product Description:
Sodium tripolyphosphate (STPP, sometimes STP or sodium triphosphate or TPP ) with formula Na5P3O10
Used as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production.
Indexes | Industrial Grade | Food Grade |
1 | Assay Na5P3O10 % MIN | 94.0 | 95 |
2 | P2O5 %MIN | 57.0 | 57 |
3 | Water Insoluble Matter %MAX | 0.1 | 0.05 |
4 | Iron(Fe) %MAX | 0.01 | 0.01 |
5 | PH value(1%water solution) | 9.2-10.0 | 9.5-10.0 |
6 | Heavy Metal (as Pb) %MAX | | 0.001 |
7 | Arsenic (As) %MAX | | 0.0003 |
8 | Fluoride (F) %MAX | | 0.003 |
9 | Particle Size
Power:
Through 16 mesh sieve %MIN
Through 35 mesh sieve %MIN
Through 100 mesh sieve %MIN
Fine power:
Through 100 mesh;sieve %MIN | 95
90
40
90 | 95
90
40
90 |
10 | Whiteness %MIN | 90 | 90 |