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Apparent molar quantities of sodium octanoate in aqueous solutions

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An Erratum to this article was published on 19 October 2004

Abstract

Densities and sound velocities of aqueous solutions of sodium octanoate were determined in a range of molalities between 0.0352 and 0.8105 mol kg−1 at 25, 30, 35, 40 and 45 °C. The isotherms of molality dependence of both density and sound velocity were used to determine the cmcs. Apparent molar volumes and compressibilities were determined from measurements of ultrasound velocity and density. The values of apparent molar volumes and compressibilities at infinite dilution and the apparent molar quantities in the micellar range were obtained and studied as a function of temperature. Values of the critical micelle concentration and the apparent molar quantities in the premicellar and postmicellar range are discussed and compared with the values of the corresponding fluorinated compound.

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Acknowledgements

This research was funded by the Spanish Ministry of Science and Technology, through the project MAT2002–00608 (European FEDER support included). A.G.-P. thanks the University of Santiago de Compostela for his postdoctoral grant.

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Authors and Affiliations

  1. Group of Biophysics and Interfaces, Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain

    Alfredo González-Pérez, Juan M. Ruso, Gerardo Prieto & Félix Sarmiento

Authors
  1. Alfredo González-Pérez
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  2. Juan M. Ruso
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  3. Gerardo Prieto
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  4. Félix Sarmiento
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Corresponding author

Correspondence to Félix Sarmiento.

Additional information

An erratum to this article can be found at http://dx.doi.org/10.1007/s00396-004-1223-z

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González-Pérez, A., Ruso, J.M., Prieto, G. et al. Apparent molar quantities of sodium octanoate in aqueous solutions. Colloid Polym Sci 282, 1133–1139 (2004). https://doi.org/10.1007/s00396-003-1047-2

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