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Mineral formation from aqueous solution, part II. The stability of langite, Cu4So4(OH)6 · H2O

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Summary

Naturally occurring waters in the vicinity of complex Cu orebodies have been collected where they are responsible for the precipitation of solid langite, Cu4SO4(OH)6 · H2O, and malachite, Cu2CO3(OH)2. The solutions were analysed and from computer fitting of results the solubility product of langite has been calculated as log Ksp=−17.3 (0.2). This value has enabled the stability field of langite to be estimated and the relationship of this compound to other basic cupric sulphates is discussed.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, University College, P. O. Box 78, CF1 1XL, Cardiff, UK

    Alwan K. Alwan & Peter A. Williams

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  1. Alwan K. Alwan
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  2. Peter A. Williams
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Part I. A. K Alawn and P. A Williams,Transition Met. Chem., 78/104

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Alwan, A.K., Williams, P.A. Mineral formation from aqueous solution, part II. The stability of langite, Cu4So4(OH)6 · H2O. Transition Met Chem 4, 319–322 (1979). https://doi.org/10.1007/BF00618325

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