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PbWO4 (stolzite) solubility product?

PbWO4 (stolzite) solubility product?

PbWO4 (stolzite) solubility product?

(OP)
Anyone can provide the solubility product (Ksp) of PbWO4, CaWO4, FeWO4 and metalic W with reference citation?

Highly appreciated

RE: PbWO4 (stolzite) solubility product?


Lange's Handbook of chemistry (McGraw Hill) gives the following solubility products:

CaWO4: 8.7×10-9
PbWO4: 4.5×10-7

RE: PbWO4 (stolzite) solubility product?

(OP)
Thank you very much, 25362. !!!

Nevertheless, the information I had in hand for Ksp of PbWO4 is a much lower value --> ten to the minus 30 sth.

Also, I have seen other reference mentioning its Ksp in the magnitude of ten to the minus eleven.

I am really confused which one is the correct value on earth.

Could you please provide any additional information? I really really appreciate your great help.

Thank you again.

RE: PbWO4 (stolzite) solubility product?


I cannot provide more help, only the suggestion that the reason for the discrepancies may be that tungstates and molybdates tend to form polyanions of the kind HW6O215- and their salts with metal cations, having smaller solubility products.

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