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Tetra Potassium Pyrophosphate(TKPP)

Molecular formula: K4P2O7

Molecular weight: 330.34

CAS Number: 7320-34-5

Standard:HG/T3591-1999


Properties

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.


Package

Packing :25 kgs bag,1000 kgs,1100 kgs, 1200 kgs jumbo bag

Loading:25 kgs on pallet: 22MT/20’FCL; Un-palletized:24MT/20’FCL

Jumbo bag :20 bags /20’FCL ;


Specifications



    NO    

  Specifications

 Technical Grade 

1

Appearance

    White   powder or granular    

2

Assay                             % ≥       

98.0

3

P2O5                            % ≥

42

4

Iron(Fe)                          % ≤

0.1

5

Water insoluble matter % ≤

0.2

6

Heavy Metals,as   Pb      % ≤

0.003

7

Arsenic(As)                     % ≤

0.002

8

PH Value

9.5—10.5

9

loss on   ignition       % ≤

0.2

10

Pb               % ≤

0.0005

11

Ortho   Phosphate

Pass   test