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The aggregation of Span 80 in toluene

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Abstract

The aggregation equilibria of the non-ionic surfactant Span 80 in toluene has been studied by vapour pressure osmometry (VPO) at different temperatures. The experimental data, treated both graphically and numerically using the LETAGROP-SUMPA program, can be explained by assuming the formation of dimers. The thermodynamics of Span 80 in toluene have also been calculated from the van't Hoff equation.

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Authors and Affiliations

  1. Departamento Química Analítica, Facultad de Ciencias, Universidad del Pais Vasco, Apdo. 644, 48080, Bilbao, Spain

    A. Almela, M. P. Elizalde & R. Benito

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  1. A. Almela
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  2. M. P. Elizalde
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  3. R. Benito
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Almela, A., Elizalde, M.P. & Benito, R. The aggregation of Span 80 in toluene. J Solution Chem 22, 231–241 (1993). https://doi.org/10.1007/BF00649246

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  • DOI: https://doi.org/10.1007/BF00649246

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