Sodium tripoly phosphate (STPP)

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Project at a Glance

Contents on the CD Rom

  • Sodium triphosphate (STP, sometimes STPP or sodium tripolyphosphate or TPP) 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.
  • Polyphosphates are hydrolyzed into simpler phosphates, which in moderate amounts are nutritious.
  • For example, ATP, a related derivative of triphosphate, is essential for life.
  • Thus, the toxicity of polyphosphates is low, as the lowest LD50 after oral administration is >1,000 mg/kg body weight.
  • Similarly, no mutagenic or carcinogenec effects nor reproductive effects have been noted. 
  • Salts of polyphosphate anions are moderately irritating to skin and mucous membrane because they are mildly alkaline.
  • STPP can be hydrolysed, finally  to  orthophosphate, which can be assimilated by algae and/or by micro-organisms.
  • STPP thus ends up being assimilated into the natural phosphorus cycle.
  • Reliable published studies confirm  biochemical  understanding, showing that STPP is progressively hydrolysed by biochemical activity in contact with waste waters (in sewerage pipes and within sewage works) and also in the natural  aquatic environment.
  • As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.



  • Sodium tripolyphosphate (STPP)
  • General information
  • Product Description
  • Overview of Sodium tripolyphosphate
  • Information on Sodium tripolyphosphate
  • Use of STPP in Cat Fish


  • Composition of an STPP product for dishwasher detergent formulations and method of preparation
  • Sodium tripolyphosphate composition and method of producing it
  • Process for preparing medium density granular sodium tripolyphosphate
  • Process for preparing a sodium tripolyphosphate hexahydrate powder
  • Process for making sodium tripolyphosphate from wet process phosphoric acid
  • Preparation of granular sodium tripolyphosphate products from screen undersize sodium tripolyphosphate particles
  • Production of low density granular sodium tripolyphosphate
  • Production of hydrated sodium tripolyphosphate
  • Modification of the hydration characteristics of form ii sodium tripolyphosphate prior to detegent processing


  • Suppliers
  • Selling leads
  • Manufacturers of sodium tripolyphosphate
  • Suppliers of sodium tripolyphosphate
  • Exporters of sodium tripolyphosphate
  • Sodium tripolyphosphate Suppliers

Processing & Products

  • Phosphates and alternative detergent Builders
  • Production process
  • Production process of STPP
  • Detergents
  • Formula of the laundry detergent
  • 4A Zeolite

Data sheets & Products

  • STPP
  • Sodium tripolyphosphate
  • MSDS for Sodium tripolyphosphate
  • MSDS for STPP
  • Data sheet for Sodium tripolyphosphate
  • Safety data sheet for STPP
  • Sodium tripolyphosphate Tech 85 %
  • MSDS from Zhongya chemical
  • MSDS from Innophos
  • Sodium tripolyphosphate food grade

Reports, Project & Plant

  • Phosphates and alternative detergent Builders
  • Determination of phosphorous in shrimp treated with sodium tripolyphosphate
  • East Africa has great prospects for manufacturers of fertiliser
  • Sodium tripolyphosphates plants

Company profiles 

  • Company from Canada
  • Company from China
  • Company from Delhi, India
  • Company from Durban
  • Company from Hangzhou, China
  • Company from Maharashtra, India
  • Company from Mumbai
  • Company from Nanjing, China
  • Company from Russia
  • Company from Shanghai, China
  • Company from Texas
  • Company from Thailand
  • Company from Tianjin city, China

Raw materials suppliers

  • Soda Ash
  • Phosphoric Acid
  • Disodium Hydrogen Phosphate
  • Sodium Dihydrogen Phosphate

Equipment suppliers

  • Bunker
  • Rotary furnace
  • Scrubber
  • Spray dryer

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Primary Information Services
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