STPP, Sodium Tripolyphosphate 90% 94%, Food Grade, Industrial Grade, Main Auxiliaries for Synthetic

Our advantage:
1. Factory price,
2. Good Quality,
3. Free sample,
4. ISO Cerficate,
5. Along stable supplier,
6. Good support to you
````````````````````````````````````````````````````````````````
Specifications
1. 94% Sodium Tripolyphosphate
2. High quality with competitive price
3. Professional manufacturer with 20 years experienceProduct Description: Manufacturer Supply 94% Sodium Tripolyphosphate
Sodium triphosphate (STP, STPP or sodium tripolyphosphate or TPP, )is an inorganic compound with formula Na5P3O10. It is the sodium salt of thepolyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on alargescale as acomponent of many domestic and industrial products, especially
Detergents. Environmental problems associated with eutrophication are attributedto its widespreaduse.Preparation and properties
Sodium tripolyphosphate is produced by heating astoichiometric mixture ofdisodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, undercarefully controlled conditions.2 Na2HPO4 +NaH2PO4 Na5P3O10 +2 H2O
In this way, approximately 2million tons are produced annually.STPP is acolourless salt, which exists both in anhydrous form and as thehexahydrate. The anion can be described as the pentanionic chain[O3POP(O)2OPO3]5-. Many related di-, tri-, and polyphosphates are known including the cyclic triphosphate P3O93-. It bindsstrongly to metal cations as both abidentate and tridentate chelating agent.
Uses
In detergents
The majority of STPP is consumed as acomponent of commercial detergents. It
Serves as a"builder, "industrial jargon for awater softener. In hard water
(water that contains high concentrations of Mg2+ and Ca2+), detergents are
Deactivated. Being ahighly chargedchelating agent, TPP5- binds to dications
Tightly and prevents them from interfering with the sulfonate detergent.Food applications
STPP is apreservative for seafood, meats, poultry, and animal feeds. It is common
In food production as Enumber E451. In foods, STPP is used as an emulsifier and
To retain moisture. Many governments regulate the quantities allowed in foods, as
It can substantially increase the sale weight of seafood in particular. The United
States Food and Drug Administration lists STPP as "generally recognized as safe. ".Other uses
Other uses (hundreds of thousands of tons/year) include "ceramics, leather
Tanning(as masking agent and synthetic tanning agent -SYNTAN), anticaking,
Setting retarders, flame retardants, paper, anticorrosion pigments, textiles,
Rubber manufacture, fermentation, antifreeze.
Packaging &DeliveryPackaging Detail:25Kg double inner plastic and outer knitting bag, customer's demandDelivery Detail:Within 15 days after your advance payments
Sodium Tripolyphosphate / STPPIndexesIndustrial GradeFood GradeAssay Na5P3O10% ≥94.094.0P2O5% ≥57.057.0Water Insoluble Matter %≤0.150.05Iron(Fe) %≤0.010.01PH value (1% water solution)9.2-10.09.5-10.0Heavy metal (as Pb) %≤--0.001Arsenic (As) %≤--0.0003Fluoride (F) %≤--0.003Particle Size
Through 16 mesh sieve %≥
Through 35 mesh sieve %≥
Trough 100 mesh sieve %≥
95.0
90.0
40.0
95.0
90.0
40.0Whiteness %≥90.090.0