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Sodium Tripolyphosphate
Sodium Tripolyphosphate
Sodium Tripolyphosphate

Sodium Tripolyphosphate

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Other Name: STPP
Origin: China

Product Details

  • Item Name: Sodium Tripolyphosphate
  • Other Name: STPP
  • Appearance: White powder or granular
  • CAS NO.: 7758-29-4
  • MF: Na5P3O10
  • Formula Weight: 367
  • Melting Point: 622.00℃
  • E No.: E451
  • Hs Code: 2835311000
  • Type: GENERAL


Used as buffer, leaven, quality modifier, ferment agent, emulsifier, nutriment, adhesive and preservative in foods.

Package & Storage

In 25kg, 50kg, 1000kg net bags; store at a cool, dry and well ventilated place.

Basic Description

Sodium Tripolyphosphate 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. It is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture.

Detail Description