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Studies on conductance behaviour of magnesium soaps in lower aliphatic alcohols

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  • Colloid Science
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Summary

The colloid chemical behaviour of magnesium soaps in n-aliphatic alcohols has been investigated at various temperatures by conductivity method. The soaps form micellar aggregates and the c. m. c. determined is found to be independent of the nature of solvent. The conductivity behaviour of soaps is exhibited by an equation: logΛ M =A +B logc

WhereA andB are constants andc is the concentration in g moles/litre. The values ofA increases with temperature whereas it decreases with increase in chain length of the solvent. The values of constantB are independent of temperature and chain length of the soap. The dissociation constant,K molecular conductance at infinite dilutionλ and heat of dissociation,λH° have been obtained graphically. The results confirm that c. m. c. remains unaffected by the change in temperature (35–50 °C).

Zusammenfassung

Es wurde das kolloidchemische Verhalten von Magnesiumseifen in geradkettigen aliphatischen Alkoholen bei verschiedenen Temperaturen untersucht. Die Seifen bilden mizellare Aggregate; die CMC erwies sich als unabhängig von der Natur des Lösungsmittels. Das Leitfähigkeitsverhalten läßt sich durch die Beziehung logΛ M =Λ +B logc beschreiben. In dieser sindA undB Konstante,c die Konzentration in Mol pro Liter.A steigt mit der Temperatur und sinkt mit steigender Kettenlänge von Seife und Lösungsmittel.B ist temperatur- und kettenlängenunabhängig.

Die erhaltenen Ergebnisse bestätigen, daß die CMC im Temperaturbereich 35–50 °C temperaturunabhängig ist.

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Varma, R.P., Kumar, K. Studies on conductance behaviour of magnesium soaps in lower aliphatic alcohols. Colloid & Polymer Sci 256, 266–269 (1978). https://doi.org/10.1007/BF01550557

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  • DOI: https://doi.org/10.1007/BF01550557

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