Potassium Pyrophosphate (TKPP)

Potassium pyrophosphate (TKPP) is an inorganic potassium phosphate salt widely used as a buffering, dispersing, and chelating agent. It is the potassium salt of pyrophosphoric acid, appearing as a white crystalline powder that is freely soluble in water. TKPP provides strong sequestering ability for metal ions, making it valuable in both food and industrial applications.

In food processing, TKPP functions as an emulsifier, stabilizer, and water-retention agent, particularly in seafood, meats, poultry, and dairy products. It helps preserve texture, prevent moisture loss, and improve protein stability. Industrially, TKPP is used in detergents, ceramics, and water treatment formulations, where it disperses solids, prevents scale, and stabilizes solutions. Compared to sodium-based phosphates, potassium pyrophosphate is preferred in low-sodium formulations and specialized processing applications.

TKPP is versatile, effective, and widely adopted across industries ranging from food and beverages to water treatment, ceramics, and chemical manufacturing.

Synonyms: TKPP, Tetrapotassium diphosphate, Potassium diphosphate, Pyrophosphoric acid tetrapotassium salt

Characteristics:

• IUPAC Name: Tetrapotassium diphosphate
• CAS Number: 7320-34-5
• UN Number: 3288

Recommended Use / Industries:

• Food processing (meats, seafood, poultry, dairy)
• Low-sodium food and beverage formulations
• Detergents and cleaning products
• Water treatment and scale inhibition
• Ceramics, textiles, and industrial chemical applications