Issue 7, 2003
From the journal:

Photochemical & Photobiological Sciences

Application of photoacoustic calorimetry to the determination of volume changes in reactions involving radical anions in aqueous solutions†

María S. Churio,‡*a   Marta A. Brusa‡a  and  María A. Grela‡*a  

* Corresponding authors

a Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CC 624 (7600) Mar del Plata, Argentina
E-mail: schurio@mdp.edu.ar; magrela@mdp.edu.ar

Abstract

The particular features of the application of photoacoustic calorimetry to the determination of volume changes in reactions involving radical anions in aqueous solutions are addressed. Analysis of recent literature data on volume changes of redox pairs, including our previous results on the couples NO2−/NO2 and SO42−/SO4˙−, together with known values of molal volume changes for ionization reactions, allow us to derive an empirical correlation for these categories of reactions. Finally, the pertinence of describing the volume changes of complex processes as a simple sum of separable terms is critically examined.

Graphical abstract: Application of photoacoustic calorimetry to the determination of volume changes in reactions involving radical anions in aqueous solutions

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Article information

DOI
https://doi.org/10.1039/B301838E
Article type
Paper
Submitted
17 Feb 2003
Accepted
17 Apr 2003
First published
09 May 2003

Photochem. Photobiol. Sci., 2003,2, 754-758

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Application of photoacoustic calorimetry to the determination of volume changes in reactions involving radical anions in aqueous solutions

M. S. Churio, M. A. Brusa and M. A. Grela, Photochem. Photobiol. Sci., 2003, 2, 754 DOI: 10.1039/B301838E

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