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Topic: complex ion Kf's  (Read 4630 times)

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Offline ngoykhman

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complex ion Kf's
« on: May 01, 2009, 08:41:11 AM »
Where can I find a list of complex- ion formation constants, particularly of FeCl4, CoCl4, CuCl4 and NiCl4? I need them for a chromatography lab report, and I can't find them anywhere.

Thank you.

Offline BluRay

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Re: complex ion Kf's
« Reply #1 on: May 02, 2009, 09:24:43 AM »
Where can I find a list of complex- ion formation constants, particularly of FeCl4, CoCl4, CuCl4 and NiCl4? I need them for a chromatography lab report, and I can't find them anywhere.

Thank you.
You didn't specify the metal's oxidation number. For the M3+ chlorides I found these two data:

Reaction                                Kdissociation complex = Kequilibrium
FeCl4-  <-->  FeCl3 + Cl-             -1.9 
CuCl4-  <--> CuCl3 + Cl-             -0.55

From: Qualitative Chemical Analysis - G.Charlot

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