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Zur Thermodynamik der Metallcarbonate 3. Mitteilung [1]. Löslichkeitskonstanten und Freie Bildungsenthalpien von ZnCO3 und Zn5(OH)6(CO3)2 bei 25°
Authors:P Schindler  M Reinert  H Gamsjger
Institution:P. Schindler,M. Reinert,H. Gamsjäger
Abstract:The solubilities of ZnCO3 and Zn5(OH)6(CO3)2 have been investigated at 25°C in solutions of the constant ionic strength 0,2 M consisting primarily of sodium perchlorate. From experimental data the following values for equilibrium constants and GIBBS free energies of formation are deduced: equation image equation image equation image equation image A predominance area diagram for the ternary system Zn2+–H2O–CO2(g) including ZnO, ZnCO3, Zn5(OH)6(CO3)2, and Zn2+ is given.
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