Stpp Sodium Tripolyphosphate For Washing Powder
Sodium triphosphate (STP), also sodium tripolyphosphate (STPP), or tripolyphosphate (TPP),[1]) 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 widespread use.
Sodium tripolyphosphate is produced by heating a stoichiometric mixture of disodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, under carefully controlled conditions.[2]
2 Na2HPO4 + NaH2PO4 → Na5P3O10 + 2 H2O
STPP is a colourless salt, which exists both in anhydrous form and as the hexahydrate. The anion can be described as the pentanionic chain [O3POP(O)2OPO3]5−.[3][4] Many related di-, tri-, and polyphosphates are known including the cyclic triphosphate P3O93−. It binds strongly to metal cations as both a bidentate and tridentate chelating agent.
Product:Sodium Tripolyphosphate (STPP)
Formula：Na5P3O10
Molecular Weight：367.86
Standard：GB9983-88
Properties: Glossy particle of white shape powder , melting point are be 622 ~C , easy to dissolve in water, magnesium waits for the metal ion to have the notable chelation ability , energy softening hard water to the calcium , make suspension liquid become a solution , have weak basicity , there is no corrosivity.
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| Specifications | Tech Grade |
| Main content % ≥ | 94 |
| P2O5 % ≥ | 57 |
| Water Insoluble Matter %≤ | 0.10 |
| Fe % ≤ | 0.007 |
| PH Value of 1% water solution | 9.2-10.0 |
| Through 16 Mesh % ≥ | 95 |
| Through 35 Mesh % ≥ | 90 |
| Through 100 Mesh % ≥ | 40 |
| Whiteness % ≥ | 90 |
Use: Main part being used as sapide helps the agent , soap synergist , water softener , processes hides giving tanning agent , dyeing an assistant, the effective powder that suspension liquid sells at reduced prices such as paint , advanced age soil , magnesia , calcium carbonate lama, makes paper using the greasy dirt aseptic , organic synthesis catalysator. Also be used petroleum products to refine , rubber whey bestowal , metal industry and medicine industrial to do the dispersant, but the solvation, use being unable to have broad as well as domestic bird processes aspect in synthal , food industry.
Package:by 25kgs/pp bag 25mt per 20'fcl
Product Categories : Detergent > Sodium Tripolyphosphate
