L'action de l'ammoniac sur l'hydroxyde de cadmium et la stabilité des complexes en milieu aqueux |
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Authors: | A. O. Gü beli,R. Taillon |
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Abstract: | The solubility of precipitated Cd(OH)2 was determined at 25°C in 1 M NaClO4, as a function of pH and of the ammonia content of the solutions. Formation constants were obtained for the following hydroxo, ammine and hydroxo-ammine complexes: CdOH+, Cd(OH)2, Cd(OH) , CdNH , Cd(NH3) , Cd(NH3) , Cd(NH3) and Cd(OH)2NH3. The solubility product of the hydroxide was also calculated. The presence of polynuclear species was investigated by titrimetric determinations of the hydrogen ion concentration at constant metal concentration. |
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