Tetra Potassium Pyrophosphate(TKPP), tetra

Chemical formula: K4P2O7

Molecular weight: 330.34

Standard executed: National standard

CAS Number: 7320-34-5

Anhydrous tetra potassium phosphate is in white powder or granular. Relative density 2.534 g/cm3 and melting point 1109℃; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25℃,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.
Application:

It mainly applied to electroplating without cyanate, industrial or household detergents; It can used as a buffering reagent as well as stabilizer for hydrogen peroxide; It can also be used as dispersion agent for ceramic, clay, latex and pigments etc.
Packing and storage:

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

Specifications Industrial Grade Food Grade

Appearance   white   powder or granular

Main contents % ≥ 96.0          96.0

Iron(Fe) % ≤    0.03               0.03

Water insoluble matter% ≤ 0.1        0.1

Heavy metals ,as Pb % ≤           0.001

Arsenic(As) % ≤               10.0-10.7

Ortho  Phosphate             pass test