Tetrapotassium pyrophosphate

Tetrapotassium pyrophosphate is commonly used in dental products. It can also be used as a food additive.

K4P2O7

Details


Chemical Formula

K4P2O7

EC Number

230-785-7

CAS Number

7320-34-5

Industries
  • Home & Personal care
Applications
  • Dental care
  • Personal care products
  • Food additive

Specification


  • Tetrapotassium pyrophosphate: min. 95.0%
  • Phosphate (P₂O₅): 42.6-43.6%
  • Loss on ignition: max 0.5%
  • pH in 1% solution: 10.0-10.6
  • Arsenic (As): max. 2 ppm
  • Fluoride (F): max. 10 ppm
  • Lead (Pb): max. 2 ppm
  • Mercury (Hg): max. 1 ppm
  • Cadmium (Cd): max. 1 ppm
  • Heavy metals (as Pb): max. 10 ppm

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