Ultrasonic Studies of Some Substituted Coumarins in Binary Solutions of Water with Dioxane and Tetrahydrofuran

A. U. Mandakmare* and M. L. Narwade

Department of Chemistry, Bhartiya Mahavidyalaya, Amravati 444 905 (India)

ABSTRACT:

The apparent molal compressibilities (∅ k) and the apparent molal volumes (∅v) of the substituted coumarins have been evaluated by the measurement of ultrasonic sound velocities in 55%, 65%, 75% and 85% dioxane-water and THF-water mixtures. The results are discussed in the light of solute-solvent interactions, ∅k and∅v values suggest that ion-solvent interactions become less on addition of water. The limiting apparer t molal volumes (∅v°) have been determined in dilute solutions (0.005-0.008 M).

KEYWORDS:

Compressibilities; Ultrasonic; Dioxane; Tetrahydrofuran

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Copy the following to cite this article: Mandakmare A. U. Narwade M. L. Ultrasonic Studies of Some Substituted Coumarins in Binary Solutions of Water with Dioxane and Tetrahydrofuran. Orient J Chem 1997;13(3).

Copy the following to cite this URL: Mandakmare A. U. Narwade M. L. Ultrasonic Studies of Some Substituted Coumarins in Binary Solutions of Water with Dioxane and Tetrahydrofuran. Orient J Chem 1997;13(3). Available from:http://www.orientjchem.org/?p=37566