Zur Thermodynamik der Metallcarbonate 3. Mitteilung [1]. Löslichkeitskonstanten und Freie Bildungsenthalpien von ZnCO<sub>3</sub> und Zn<sub>5</sub>(OH)<sub>6</sub>(CO<sub>3</sub>)<sub>2</sub> bei 25°

P. Schindler, Michael Reinert, Heinz Gamsjäger

Helvetica Chimica Acta · 1969 · 67 citations · 4 references

Concepts

Abstract

Abstract The solubilities of ZnCO 3 and Zn 5 (OH) 6 (CO 3 ) 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 G IBBS free energies of formation are deduced: A predominance area diagram for the ternary system Zn 2+ –H 2 O–CO 2( g ) including ZnO, ZnCO 3 , Zn 5 (OH) 6 (CO 3)2 , and Zn 2+ is given.

References

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