Audited Supplier
Solubility: soluble in water, 20g/100mL (20ºC)
Sodium triphosphate (STPP or sodium tripolyphosphate) is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially Detergents.
Environmental problems associated with eutrophication are attributed to its widespreaduse.
| Index | Standard |
| Purity(Na5P3O10) by wt % | 94.0 min |
| P2O5 by wt % | 56.5 min |
| Pyrophosphate (Na4P2O7) by wt % | 4.0 max |
| Orthophosphate and Metaphosphate by wt % | 2.0 max |
| Iron content (as Fe) by wt % | 0.01 max |
| Water Insoluble by wt % | 0.10 max |
| Bulk Density by g/ml | 0.9~1.15 |
| Phase I by wt % | 15~40 |
| Whiteness % | 85 min |
| PH value (1% solution) | 9.2~10.3 |
| Particle Size (100mesh pass by wt %) | 95 min |
1.STPP tech grade is used as additive in detergent synthesis, ceramics production, soap synergist.
2.Has strong emulsifying property to lubricant and fat, to adjust the PH value of buffer liquid soap.
3. Water softener and buffering agent in detergent industry
4. Quality modifier, pH adjustment, water reserving agent and other functions in food industry
5. Paper making
6.Dispersing agent in oil drilling mud
7. Ceramic, mining, water treatment industry and etc.
Function in detergent industry:
STPP is a good auxiliary in detergent industry, the usual dosage is about 10~35%, the function of STPP in detergent system are:
1. Soften the hard water by reacting with metal ions of Ca2+, Mg2+, Fe3+ and others to make them from insoluble to soluble Na5P3O10+Ca2+ ---> Na3(CaP3O10)+2Na+
2. Enhancing the emulsifying and dispersing power, to increase the solubility of protein and dust which normally existing in the fabrics from daily life
3. Buffering agent, to make the pH value of detergent solution on the level of 9~9.5, so that those acid dirt can be easily removed from fabrics
4. Anti-caking agent for detergent powder. Since detergent powder is easily caking in exposed air, STPP can absorb the moisture and become Hexahydrate, which is dry and free flowing.
Packing: Net 25kg/1000kg in Plastic woven bags with PE lining
Loading: 25MT/20FCL'; 22MT/20FCL' with pallets
Q: Are you a factory or a trading company?
A: We are a trading company, but we have worked with many factories for many years. The prices are very competitive.
Q: How do I order?
A: Make an inquiry to us → customize drawing and sample → Inform us of use scenario → Receive our product design recommendation → Discuss details → Confirm sample → sign contract/deposit → Mass production → Goods ready → Balance/delivery → Further cooperation.
Q: What about the sample order?
A: I can give you the sample. Please contact us for details. Once we charge you the sample fee, rest assured that it will be refunded when you place your official order.
Q: Which modes of transportation are available?
A: Sea, air, land, express, special line. Can meet your any need.
Q: How long does it take for delivery [production] and shipment?
A: The delivery time depends on the quantity you order. It usually takes 7-15 working days.
Q: I'm missing some products in my package. What can I do?
A: Please contact our support team, we will confirm the contents of your order with packaging, compensation according to the actual situation, we apologize for the inconvenience.
Q: How do I confirm payment?
A: We accept wire transfer, paypal payment, other payment methods are also acceptable, please contact us before you pay through other payment methods. Another 30% down payment is feasible and the balance should be paid before shipment.
