Home - TKPP-Tetra-Potassium Pyrophosphate

Tetra-Potassium Pyrophosphate (TKPP)

Formula: K4P2O7
MW: 330.35
Quality: white powder or mass,specific gravity:2.534,M.P.:1109°C;Soluble in water,insoluble in ethanol and its aqueous solution is alkali .Solubility (25°C):187g/110g water;it has the same properties as other condensed phosphate.
Usage: TKPP is mainly used as complexing agent in cyanogens-free electroplating, substituting for sodium cyanide. Tetrapotassium Pyrophosphate also can be used as pretreating agent in electroplating and pyrophosphoric acid electroplating solution, as ingredient and additive in all kinds of detergengts and metal surface treating agent,as clay dispersant in ceramic industry,as dispersant and buffering agent in pigment and dyes,to remove a small amount of ferric ion from water in blanching and dyeing industry to improve quality.
Package: Tetrapotassium Pyrophosphate is packed in 25kg in plastic paper bag.
Transport: By train,truck and vessel,etc.

Specifications

Industrial Grade

Content            %≥

96

Iron(Fe)            %≤

0.01

Water Insoluble      %≤

0.1

PH of(1% water solution)

10-10.7

Arsenic(As)         %≤

------

Heavy metals(Pb)    %≤

0.003

Orthophosphate

accord with regulation

Appearance

white powder or mass