Ionic Processes in Saturated Solutions of MgCl2·6H2O in Solutions of Other Divalent Metals

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Title:Ionic Processes in Saturated Solutions of MgCl2·6H2O in Solutions of Other Divalent Metals
Creators:
Eysseltová, Jitka
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 66, 1, pp. 89-98
Uncontrolled Keywords:Activity coefficients, Hydration analysis, Solubility, Magnesium chloride hexahydrate, Crystallization, Aqueous solutions, Divalent metal chlorides

Abstract

Solubility isotherms of MgCl<sub>2</sub>·6H<sub>2</sub>O at 25 °C in solutions of chlorides of bivalent beryllium, calcium, manganese, iron, cobalt, zinc and mercury were treated by the hydration analysis. In addition to the usual procedure, the recently developed modified transfer energy Ξ was used to characterize the situation in saturated solutions. As a result, the following ionic processes were established in the saturated solutions under consideration: competition for water in solutions of MgCl<sub>2</sub>·6H<sub>2</sub>O containing beryllium and calcium chloride, complex formation in solutions of MgCl<sub>2</sub>·6H<sub>2</sub>O containing manganese, cobalt, zinc and mercury ions and formation of ions with heterogeneous coordination sphere in solutions of MgCl<sub>2</sub>·6H<sub>2</sub>O containing iron or copper ions. In the last case, the ability of the formed ions to crystallize from solution was found to be reduced in comparison with the other cases. Activity coefficients of MgCl<sub>2</sub> were calculated along the solubility curves under consideration. <p>

Title:Ionic Processes in Saturated Solutions of MgCl2·6H2O in Solutions of Other Divalent Metals
Creators:
Eysseltová, Jitka
Uncontrolled Keywords:Activity coefficients, Hydration analysis, Solubility, Magnesium chloride hexahydrate, Crystallization, Aqueous solutions, Divalent metal chlorides
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:66
Number:1
Page Range:pp. 89-98
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20010089UNSPECIFIED
ID Code:1777
Item Type:Article
Deposited On:06 Feb 2009 17:12
Last Modified:06 Feb 2009 16:12

Citation

Eysseltová, Jitka (2001) Ionic Processes in Saturated Solutions of MgCl2·6H2O in Solutions of Other Divalent Metals. Collection of Czechoslovak Chemical Communications, 66 (1). pp. 89-98. ISSN 0010-0765

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