Solid-Solute Phase Equilibria in Aqueous Solutions XVII [I]. Solubility and Thermodynamic Data of Nickel(II) Hydroxide |
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| Authors: | Heinz Gamsjäger Harald Wallner Wolfgang Preis |
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| Affiliation: | Institut für Physikalische Chemie, Montanuniversit?t Leoben, A-8700 Leoben, Austria, AT
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| Abstract: | Summary. The solubility of nickel(II) hydroxide (theophrastite) in water was determined as a function of temperature and ionic strength by the pH variation method. In each experiment the inert electrolyte medium was made up with sodium perchlorate. The experimental data were thermodynamically analyzed, and the standard solubility constant was extrapolated to zero ionic strength with the specific ion-interaction equation. Furthermore, the standard molar Gibbs energy and the enthalpy of formation for theophrastite, β-Ni(OH)2, were evaluated. For all calculations, ChemSage and its optimizer routine were used. Received October 25, 2001. Accepted October 29, 2001 |
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| Keywords: | . Nickel hydroxide Theophrastite Solubility Thermodynamic data. |
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