December 11, 2024, 08:06:36 AM
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Topic: Where did wikipedia get the Ksp of lead iodide from?  (Read 446 times)

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Offline cherry

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Where did wikipedia get the Ksp of lead iodide from?
« on: November 24, 2024, 05:07:43 PM »
https://en.wikipedia.org/wiki/Lead(II)_iodide
Wikipedia lists the solubility constant of lead(II) iodide as 4.41×10−9 at 20 °C, but I cannot find any source cited to back this up. I want to use this value because I'm conducting an experiment at that temperature and need to know what to cite. Can someone help me verify whether this is indeed from a valid source?

Offline Borek

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Re: Where did wikipedia get the Ksp of lead iodide from?
« Reply #1 on: November 25, 2024, 03:25:04 AM »
Handbook of chemical equilibria in analytical chemistry (Kotrlý & Šůcha, Ellis Horwood Ltd. 1985) lists pKsp of PbI2 as 8.1 at ionic strength 0, and 7.61 at ionic strength 2.0.

It further gives R.M.Smith and A.E.Martell, Critical Stability Constants, Vol. 4 Plenum Press, New York, 1976, as a reference for this value.
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