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Some useful data of continuous variation method

Einige nützliche Daten zur Methode der kontinuierlichen Variation

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Zusammenfassung

Bedingungen für die korrekte Anwendung der Methode der kontinuierlichen Variation werden gegeben. Die Daten (ParameterR mn effektive Stabilitätskonstante und Gesamtkonzentration), die eine zuverlässige Bestimmung des molaren Verhältnisses Metall∶Ligand (m/n) im Komplex ermöglichen, werden berechnet. Die Möglichkeit zur Bestimmung der wahren Werte fürm undn sowie der effektiven Stabilitätskonstanten aus einer Kurve der kontinuierlichen Variation werden erörtert und am Beispiel des Eisen(III)-Chromazurol S-Komplexes demonstriert.

Summary

Conditions for the correct application of continuous variation are presented. The data (parameterR mn , effective stability constant and total concentration) that enable a safe determination of the molar ratio metal∶ligand (m/n) in the complex are computed. The possibility of the determination of true valuesm andn and effective stability constant from one continuous variation curve are discussed and demonstrated on the example of the iron(III)-chrome azurol S complex.

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Budesinsky, B.W. Some useful data of continuous variation method. Z. Anal. Chem. 260, 351–353 (1972). https://doi.org/10.1007/BF00585256

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  • DOI: https://doi.org/10.1007/BF00585256

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