Sodium tripolyphosphate

What is Sodium Tripolyphosphate?

Sodium tripolyphosphate (CAS number: 7758-29-4) is an inorganic compound. Usually called STPP by us, its appearance is white crystalline powder. Soluble in water, the aqueous solution is alkaline. Its molecular formula is Na5P3O10, which is the sodium salt of polyphosphate pentaanion.

Application of sodium tripolyphosphate:

Sodium tripolyphosphate is divided into food grade and industrial grade. In the food industry, it is often used as a moisture retention agent, quality improver, pH regulator, and metal chelating agent. It is also a common ingredient in industrial products, especially detergents.

More uses you should know:

  1. For water softening, heavy duty fabric washing, automatic dish washing, drilling fluid cleaning, liquid cattle feed supplement.
  2. Also used as peptizer, emulsifier and dispersant.
  3. Preservatives, sequestrants and texture improvers used in food.
  4. Used in papermaking, paper coating, clay and textile processing, ore flotation; also used as a hydrogen peroxide solution stabilizer and in the manufacture of rubber and paint.

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