Qingzhou Zhongyuan Chemical Industry Co., Ltd.  

Product Name: STPP, Sodium Tripolyphosphate 90% 94%, Food Grade, Industrial Grade, Main Auxiliaries for Synthetic Detergent, Synergist for Soap; Water Softener, Model NO.: 90%, 94%, Grade Standard: Industrial Grade Type: Sodium Tripolyphosphate Purity: 90%~99% Certification: CIQ, SGS, ISO CAS No.: 7758-29-4 CAS No: 7758-29-4 Mf: Nap3o10 Appearance: White Powder or White Granular Trademark: LY Transport Package: Plastic Bag Specification: 85%, 90%, 94% Origin: Shandong HS Code: 28353190 Product Description Our advantage:1. Factory price,2. Good Quality,3. Free sample,4. ISO Cerficate,5. Along stable supplier,6. Good support to you````````````````````````````````````````````````````````````````Specifications1. 94% Sodium Tripolyphosphate2. High quality with competitive price3. Professional manufacturer with 20 years experienceProduct Description: Manufacturer Supply 94% Sodium TripolyphosphateSodium 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, especiallyDetergents. Environmental problems associated with eutrophication are attributedto its widespreaduse.Preparation and propertiesSodium tripolyphosphate is produced by heating astoichiometric mixture ofdisodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, undercarefully controlled conditions.2 Na2HPO4 +NaH2PO4 Na5P3O10 +2 H2OIn 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.UsesIn detergentsThe majority of STPP is consumed as acomponent of commercial detergents. ItServes as a"builder, "industrial jargon for awater softener. In hard water(water that contains high concentrations of Mg2+ and Ca2+), detergents areDeactivated. Being ahighly chargedchelating agent, TPP5- binds to dicationsTightly and prevents them from interfering with the sulfonate detergent.Food applicationsSTPP is apreservative for seafood, meats, poultry, and animal feeds. It is commonIn food production as Enumber E451. In foods, STPP is used as an emulsifier andTo retain moisture. Many governments regulate the quantities allowed in foods, asIt can substantially increase the sale weight of seafood in particular. The UnitedStates Food and Drug Administration lists STPP as "generally recognized as safe. ".Other usesOther uses (hundreds of thousands of tons/year) include "ceramics, leatherTanning(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 paymentsSodium 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 SizeThrough 16 mesh sieve %≥Through 35 mesh sieve %≥Trough 100 mesh sieve %≥95.090.040.095.090.040.0Whiteness %≥90.090.0