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Hydroxidcarbonate von Magnesium und Zink

Präparative Homogenfällung durch Komplexacidolyse, 5. Mitt.

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Nach der Methode der Homogenfällung durch Komplex-acidolyse wurden Mg5(OH)2(CO3)4·4H2O und Zn5(OH)6(CO3)2 formelgerecht und röntgenographisch gut kristallin dargestellt. Während das erstere Präparat, so gewonnen, dem Mineral Hydromagnesit sofort entspricht, wird das letztere dem Mineral Hydrozinkit erst durch Altern bei 100° unter der Mutterlauge völlig analog.


The compounds Mg5(OH)2(CO3)4·4H2O and Zn5(OH)6(CO3)2 with exact stoichiometric composition were prepared by the method of homogeneous precipitation and complex-acidolysis. They were obtained in a well crystalline state, as shown by their X-ray powder diagrams. While the first of these preparations corresponds to hydromagnesite, the latter needs ageing at 100° in the mother liquor to become completely analogous to the mineral hydrozinkite.

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4. Mitt.:E. Hayek undP. Inama, Mh. Chem.96, 85 (1965).

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Hayek, E., Gleispach, H. Hydroxidcarbonate von Magnesium und Zink. Monatshefte für Chemie 97, 1059–1063 (1966). https://doi.org/10.1007/BF00903554

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