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DOI: 10.1039/A806639F (Paper) Reference Section for: Phys. Chem. Chem. Phys., 1999, 1, 121-126

Compressibilities of aqueous tert-butanol in the water-rich region at 25°C: Partial molar fluctuations and mixing schemes

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Katsutoshi Tamura, Atsushi Osaki and Yoshikata Koga

Abstract

We measured the speeds of sound, u, and the densities, d, and, hence, determined the adiabatic compressibilities, κS, of aqueous tert-butanol (TBA) at small increments in mole fraction of TBA, xTBA. Existing data for heat capacity, Cp, and thermal expansivity, αp, were used to convert κS to the isothermal compressibilities, κT. Using these κT data, the normalized volume fluctuations, VΔ, and their composition derivative, the partial molar volume fluctuations of TBA, VΔTBA, (Y. Koga and P. Westh, Bull. Chem. Soc. Jpn., 1996, 69, 1505) were calculated. By using Cp data available in the literature we also calculated the normalized entropy fluctuations, SΔ, and the partial molar entropy fluctuations of TBA, SΔTBA. Furthermore, the density data at 15, 25 and 35°C in the literature were used to evaluate the thermal expansivities, αp, from which the normalized cross (entropy–volume) fluctuations, SVΔ, and the partial molar cross-fluctuations of TBA, SVΔTBA, were calculated. The composition dependence of these fluctuation functions were interpreted in the light of the mixing schemes in aqueous solutions of TBA and other non-electrolytes and the transition between them (Y. Koga, J. Phys. Chem., 1996, 100, 5172).

References

  1. L. D. Landau and E. M. Lifshits, Statistical Physics, Pergamon, Oxford, 1980, ch. XII Search PubMed.
  2. Y. Koga, Chem. Phys. Lett., 1995, 240, 340 CrossRef CAS.
  3. Y. Koga, P. Westh, S. Sawamura and Y. Taniguchi, J. Chem. Phys., 1996, 105, 2028 CrossRef CAS.
  4. Y. Koga and P. Westh, Bull. Chem. Soc. Jpn., 1996, 69, 1505 CAS.
  5. Y. Koga, J. Phys. Chem., 1996, 100, 5172 CrossRef CAS.
  6. Y. Koga, J. Crystallogr. Soc. Jpn, 1995, 37, 172 Search PubMed.
  7. F. Franks and D. J. G. Ives, Quart. Rev., 1966, 20, 1 Search PubMed.
  8. F. Franks and J. E. Desnoyers, Water Science Reviews, ed. F. Franks, Cambridge University Press, Cambridge, 1985, vol. I, pp. 175–232 Search PubMed.
  9. C. DeVisser, G. Perron and J. E. Desnoyers, Can. J. Chem., 1977, 55, 856 CAS.
  10. J. Lara and J. E. Desnoyers, J. Solution Chem., 1981, 10, 465 CrossRef CAS.
  11. J. F. Alary, M. A. Simard, J. Demont and C. Jolicoeur, J. Solution Chem., 1982, 11, 755 CAS.
  12. M. Sakurai, Bull. Chem. Soc. Jpn, 1987, 60, 1 CAS.
  13. F. Franks and H. T. Smith, Trans. Faraday Soc., 1968, 64, 2962 RSC.
  14. Y. Koga, Can. J. Chem., 1986, 64, 206 CAS.
  15. Y. Koga, Can. J. Chem., 1988, 66, 1187 CAS.
  16. Y. Koga, Can. J. Chem., 1988, 66, 3171 CAS.
  17. Y. Koga, W. W. Y. Siu and T. Y. H. Wong, J. Phys. Chem., 1990, 90, 7700 CrossRef.
  18. Y. Koga, T. Y. H. Wong and W. W. Y. Siu, Thermochim. Acta, 1990, 169, 27 CrossRef CAS.
  19. S. H. Tanaka, H. I. Yoshihara, A. W. -C. Ho, F. W. Lau, P. Westh and Y. Koga, Can. J. Chem., 1996, 74, 713 CAS.
  20. K. R. Harris, P. J. Newitt, P. J. Bach and L. A. Woolf, High Temp. -Press., 1998, 30, 51 Search PubMed.
  21. K. Tamura, K. Ohomuro and S. Murakami, J. Chem. Thermodyn., 1983, 15, 859 CrossRef CAS.
  22. Y. Koga, K. Tamura and S. Murakami, J. Solution Chem., 1995, 24, 1125 CAS.
  23. S. Miyanaga, K. Tamura and S. Murakami, J. Chem. Thermodyn., 1992, 24, 1077 CAS.
  24. J. V. Davies, F. W. Lau, L. T. N. Le, J. T. W. Lai and Y. Koga, Can. J. Chem., 1992, 70, 2659 CAS.
  25. M. Sakurai, K. Nakamura, K. Nitta and N. Takenaka, J. Chem. Eng. Data, 1995, 40, 301 CrossRef CAS.
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