Tetra Potassium Pyrophosphate
Brief Introduction
Molecular formula: K4P2O7
Molecular Mass: 330.34
CAS No: 7320-34-5
Characteristic
Being white powder particles or block solid, tetra potassium pyrophosphate is able to dissolve in water. The solubility is 2.33g/ml. It has hygroscopic property in air.
Industrial KPP(ZB/TG1 2006-88)
K4p207 content: ≥96.0%, 95.0%,94.0%;Fe content: ≤0.03%, 0.05%, 0.10%;
Water insoluble content: ≤0.01%, 0.02%, 0.25%;
PH value(1% aqueous) 10.0-10.7;
Food KPP
Calcination weightlessness content: ≤0.5%;
Water insoluble content≤0.20%;
AS content: ≤0.0003%;
Heavy metal content:≤0.002%(/pb);
Fluoride content:≤0.001%(/pb);
Lead content：≤0.001%(/pb);
Electroplating KPP(HG/T3591-1999)
K4p207 content: ≥98.0%;Fe content: ≤0.01%;
Water insoluble content≤0.10%;
PH value (10g/L aqueous) 10.5 + 0.5;
Lead content: ≤0.01%(/pb);
Application
Tetra potassium pyrophosphate mainly used for cyanogens electroplating, instead of sodium cyaniding as electroplating complexing agent. They are also used as before plating and focal phosphoric acid treatment plating solution. Made with detergent components and cloth metal surface cleaning and wash the bottle of components. It is also used for ceramic industry, pigment and dye clay dispersant the dispersant gentle granule.
Storage and Packing
It should be kept away from rain, moisture and direct sunlight during storage and transportation.
25kg/bag;25mt/fcl.
Inquiry
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