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Potassium hexafluorophosphate

[Name] Potassium hexafluorophosphate [17084-13-8] 
[Molecular formula] KPF6
[Molecular weight] 184.06
[Product Specifications]

Index Name Index Index Name Index
Appearance white cubic crystal Free fluorine(F) max0.08%
Purity min99% Free potassium(K) max0.1%
Sulphate(SO4) max0.005% Iron(Fe) max0.01%
Heavy matel(as Pb) max0.001% Water(H2O) max0.3%
Chloride(Cl) max0.01%    

[Character] Density is 2.55. Fused - matter will be decomposed of phosphorus pentafluoride and potassium fluoride slowly at 515 °C. Its solubility in water :3.65 g/100ml ( 0°C), 8.35 g/ 100ml(25°C), 38.3 g / 100ml(100°C). It can't be decomposed in water when PH isn't less than three. 
[Uses] Used for manufacturing photosensitive dope and electrolyte, and used to compose of some biology preparation, and compose of other hexafluorophosphate salts in place of hexafluorophosphate acid. 
[Packing] Packing with pasteboard barrel or iron barrel lined with polythene plastic bag. 25kg or 50kg per barrel.