Abstract
The extraction of 10 −7 M silver ion from aqueous solutions into non-aqueous solvents containing dithizone has been investigated. The effects caused by changing the temperature and non-aqueous solvent were studied. Values of the extraction constant for extractions into chloroform and carbon tetrachloride were obtained as a function of temperature. Plots of the logarithm of the constants versus the reciprocal of the absolute temperature were straight lines. A linear relation was found between the extraction constant and the ratio of the solubilities of silver dithizonate and dithizone in the non-aqueous solvent. This relation was found to hold for extractions in which the nonaqueous phase was dichloromethane, chloroform, carbon tetrachloride, benzene and chlorobenzene. Les auteurs ont effectué une étude sur l'extraction de l'argent dans des solvants non-aqueux renfermant de la dithiozone. Ils ont examiné l'influence de la température et de divers solvants. Es wird eine Untersuchung beschrieben über die Extraktion von Silber mit nicht-wässrigen Lösungsmitteln in Gegenwart von Dithiozon und der Einfluss von Temperaturänderungen und anderen Lösungsmittel geprüft.
Published Version
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