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Wednesday, July 9, 2008

What is sodium tripolyphosphate (STPP)?

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Sodium tripolyphosphate (STPP, sometimes STP or sodium triphosphate), with formula Na5P3O10, is a polyphosphate of sodium. It is the sodium salt of triphosphoric acid.

It is used in various applications such as a preservative for seafood, meats, poultry and pet foods. It is also used in toothpaste and as a builder in soaps and detergents, improving their cleansing ability. The United States Food and Drug Administration lists STPP as "generally recognized as safe", along with salt, vinegar, and baking powder. Unfortunately for consumers, an excessive amount of STPP in food can cause an increase in price, for products sold by weight contain more water than products without STPP.

STPP is a solid inorganic compound used in a large variety of household cleaning products, mainly as a builder, but also in human foodstuffs, animal feeds, industrial cleaning processes and ceramics manufacture. STPP is widely used in regular and compact
laundry detergents and automatic dishwashing detergents (in powder, liquid, gel and/or tablet form), toilet cleaners, surface cleaners, and coffee urn cleaners. It also provides a number of chemical functions including: sequestration of "water hardness", enabling surfactants to function effectively; pH buffering; dirt emulsification and prevention of deposition; hydrolysis of grease; and dissolving-dispersing dirt particles.

More information at Wikipedia.

Related Post:


  • Pinoychem formulation with sodium tripolyphosphate:
  1. Automatic Dishwashing Gel With Chlorine Bleach
  2. Heavy Duty Liquid Laundry Detergent
  3. Laundry Detergent
  4. Car Shampoo
  5. Heavy Duty Commercial Laundry Detergent
  6. Aircraft Cleaner
  7. CIP Cleaner
  8. Car Wash Compound Powder
  9. Concrete Cleaner
  10. Bottle Washing Concentrate
  11. Baking Pan Cleaner
  12. Destainer
  13. Steam Cleaner Powder
  14. Dairy Piping Cleaner



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