Calorimetric evidence of aggregation of the E-T(30) dye in alcoholic solutions

Machado, Clodoaldo and Nascimento, Maria da Graca and Rezende, Marcos Caroli and Beezer, Anthony E. (1999) Calorimetric evidence of aggregation of the E-T(30) dye in alcoholic solutions. In: International Symposium on Calorimetry and Chemical Thermodynamics. Elsevier, Netherlands pp. 155-159. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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This paper deals with the thermodynamic aspects of solvatochromic and halochromic systems. Enthalpic measurements of dilution of solutions of the E-T(30) dye in various alcohols and in the presence of increasing concentrations of sodium iodide were carried out by means of calorimetric techniques. Contrary to observations based on purely spectroscopic methods, these calorimetric measurements showed evidences of dye aggregation in solution. In addition, the results confirmed the existence of previously described dye-cation associations in the organic media.

Item Type: Conference or workshop item (Paper)
Uncontrolled keywords: solvatochromism; halochromism; dyes; calorimetry
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: I.T. Ekpo
Date Deposited: 14 Sep 2009 07:41
Last Modified: 06 May 2014 09:15
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