Our advantage:
1. Factory price,
2. Good Quality,
3. Free sample,
4. ISO Cerficate,
5. A long stable supplier,
6. Good support to you
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Specifications
1. Sodium Tripolyphosphate / STPP
2. STPP 90%, 94%
3. Ceramic, detergent, food, industrial grade
1. Product description:
Sodium Tripolyphosphate STPP
CAS No.: 775829-4
2. Our advantages:
1. Factory direct supply
2. Strong production capacity (about 750mt/month)
3. High quality, competitive price
4. Best package, punctual delivery
5. Product can be produced as your special requirements or specification
6. Free samples for your testing
4. Properties:
White powder, surface density: 0.35-0.9/cm3, melting point: 622° C, free solube in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.
5. Application:
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 oil contamination resistance agent in paper production. In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks. Foodstuffs from milk or soybeans, It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves also serves as soten or dendifier in foodstuff industry.
6. Packing & Detail:
Packing: 25kg, 50kg plastic-lined woven bag or 1000kg Big Bag
| Sodium Tripolyphosphate / STPP |
| Indexes |
Industrial Grade |
Food Grade |
| Assay Na5P3O10 % ≥ |
94.0 |
94.0 |
| P2O5 % ≥ |
57.0 |
57.0 |
| Water Insoluble Matter %≤ |
0.15 |
0.05 |
| Iron(Fe) %≤ |
0.01 |
0.01 |
| PH value (1% water solution) |
9.2-10.0 |
9.5-10.0 |
| Heavy Metal (as Pb) %≤ |
-- |
0.001 |
| Arsenic (As) %≤ |
-- |
0.0003 |
| Fluoride (F) %≤ |
-- |
0.003 |
Particle Size
Through 16 mesh sieve %≥
Through 35 mesh sieve %≥
Trough 100 mesh sieve %≥ |
95.0
90.0
40.0 |
95.0
90.0
40.0 |
| Whiteness %≥ |
90.0 |
90.0 |
Audited Supplier 
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