Pentapotassium Tripolyphosphate / Potassium Tripolyphosphate

Other Trading Names: 

  • Pentakalium Triphosphate
  • Tripoly-K
  • Pentapotassium Triphosphate
  • TKPP (Tetra Kali PentaPhosphate)

CAS Number: 13845-36-8

HS Code: 28352400

Types of Packaging:

  • 25kg per bag
Inquiry right-arrow $100.00
Availability: In stock
Pentapotassium Tripolyphosphate / Potassium Tripolyphosphate

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Industrial Grade

Food Grade


white powder

Main Content (K5P3010)

96%  min

95%  min




PH of 1% water solution



Heavy Metal (as Pb)

15 ppm  max

10 ppm max


5 ppm max

3 ppm max


3 ppm max

2 ppm max


10 ppm max

8 ppm max

Water insoluble matter

0.2 % max

0.2 % max

Chemical Description 

  • Pentapotassium tripolyphosphate, also known as potassium tripolyphosphate, is a chemical compound with the molecular formula K5P3O10.
  • It is a white crystalline powder or granules that are soluble in water.
  • The molar mass of pentapotassium tripolyphosphate is approximately 448.23 grams per mole.
  • It is composed of five potassium ions (K+) and three tripolyphosphate ions (P3O10^5-).
  • Potassium tripolyphosphate is commonly used as a food additive, E number E451, to act as a sequestrant, emulsifier, and texturizer.
  • In the food industry, it is utilized to improve the texture of processed meats, seafood, and canned goods, as well as to stabilize dairy products and prevent discoloration in potatoes and fruits.
  • The compound is also employed in detergent formulations as a water softener and dispersing agent.
  • It serves as a corrosion inhibitor in water treatment processes to prevent scaling and deposition in pipes and equipment.
  • Pentapotassium tripolyphosphate exhibits chelating properties, binding to metal ions such as calcium and magnesium, thereby preventing them from interfering with the effectiveness of cleaning agents.
  • Its chemical structure gives it the ability to sequester metal ions in solution, making it useful in various industrial applications, including cleaning agents, metal surface treatment, and ceramics manufacturing.
  • The pH of a 1% solution of potassium tripolyphosphate is typically around 9.5 to 10.5.
  • In agriculture, it is employed as a fertilizer additive to provide plants with a source of phosphorus and potassium, essential nutrients for growth and development.
  • Potassium tripolyphosphate is considered safe for use in food and other applications when used in accordance with regulatory guidelines and good manufacturing practices.
  • However, excessive consumption or exposure may lead to potential health risks, including gastrointestinal irritation and electrolyte imbalance.
  • Proper handling and storage precautions should be followed to minimize the risk of accidents or environmental contamination.
  • Overall, pentapotassium tripolyphosphate is a versatile compound with diverse industrial applications, playing an essential role in food processing, detergent manufacturing, water treatment, and agriculture.
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Pentapotassium Tripolyphosphate / Potassium Tripolyphosphate