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Enthalpies of the urea-tert-butanol-water system at 25°C

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Abstract

The enthalpies of solution of urea (U) in water (W)-tert-butanol (TBA) mixtures and of TBA in W-U mixtures, the enthalpies of dilution of TBA in W, and the enthalpies of mixing of U and TBA aqueous solutions were measured with a solution calorimeter and a flow microcalorimeter. Enthalpies of transfer of U and TBA to the mixed solvents were derived. Also, pair and triplet interaction parameters between the various solutes were derived from the mixing and dilution experiments. The enthalpic pair parameter hU-TBA is positive, suggesting that the main contribution to this parameter is the decrease in hydrophobic hydration of TBA in the presence of U.

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References

  1. J. J. Kozak, W. S. Knight, and W. Kauzmann,J. Chem. Phys. 48, 675 (1968).

    Google Scholar 

  2. H. L. Friedman and C. V. Krishnan,J. Solution Chem. 2, 2460 (1973).

    Google Scholar 

  3. R. B. Cassel and R. H. Wood,J. Phys. Chem. 78, 2465 (1974).

    Google Scholar 

  4. F. Franks, M. Pedley, and D. S. Reid,J. Chem. Soc. Faraday Trans. I,72, 359 (1976).

    Google Scholar 

  5. Y. Pointud, J. Juillard, L. Avédikian, J.-P. Morel and M. Ducros,Thermochim. Acta 8, 423 (1974).

    Google Scholar 

  6. L. Avédikian, G. Perron, and J. E. Desnoyers,J. Solution Chem. 4, 331 (1975).

    Google Scholar 

  7. J. E. Desnoyers, G. Perron, J.-P. Morel, and L. Avédikian,Chemistry and Physics of Aqueous Gas Solutions, W. A. Adams, ed. (Electrochemical Society, Princeton, 1975), p. 172.

    Google Scholar 

  8. N. Desrosiers, G. Perron, J. G. Mathieson, B. E. Conway, and J. E. Desnoyers,J. Solution Chem. 3, 789 (1974).

    Google Scholar 

  9. N. Dollet and J. Juillard,J. Solution Chem., in press.

  10. L. Avédikian, J. Juillard, J.-P. Morel, and M. Ducros,Thermochim. Acta 6, 283 (1973).

    Google Scholar 

  11. P. Picker, C. Jolicoeur, and J. E. Desnoyers,J. Chem. Thermodyn. 1, 469 (1969).

    Google Scholar 

  12. P. Picker,Can. Res. Dev. 7(1), 11 (1974).

    Google Scholar 

  13. V. B. Parker, Thermal properties of aqueous uni-univalent electrolytes, NSRDSNBS 2 (1965).

  14. R. B. Cassel and R. H. Wood,J. Phys. Chem. 78, 2460 (1974).

    Google Scholar 

  15. M. Y. Schrier, P. J. Turner, and E. E. Schrier,J. Phys. Chem. 79, 1391 (1975).

    Google Scholar 

  16. C. de Visser, H. J. M. Grünbauer, and G. Somsen,Z. Phys. Chem. (N.F.) 97, 69 (1975).

    Google Scholar 

  17. J. Kenttämaa, E. Tommila, and M. Martti,Ann. Acad. Sci. Fenn., Ser. A2,93 (1959).

  18. E. M. Arnett and D. R. McKelvey,J. Am. Chem. Soc. 88, 2598 (1966).

    Google Scholar 

  19. D. J. T. Hill, Ph. D. Thesis, Queensland (1965).

  20. C. V. Krishnan and H. L. Friedman,J. Phys. Chem. 73, 1572 (1969).

    Google Scholar 

  21. E. M. Arnett, W. B. Kover, and J. V. Carter,J. Am. Chem. Soc. 91, 4028 (1969).

    Google Scholar 

  22. J.-L. Fortier, P.-A. Leduc, P. Picker, and J. E. Desnoyers,J. Solution Chem. 2, 467 (1973).

    Google Scholar 

  23. F. F. Gucker and H. B. Pickard,J. Am. Chem. Soc. 62, 1464 (1940).

    Google Scholar 

  24. C. de Visser and G. Somsen,Rec. Trav. Chim. 91, 942 (1972).

    Google Scholar 

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Desnoyers, J.E., Perron, G., Avédikian, L. et al. Enthalpies of the urea-tert-butanol-water system at 25°C. J Solution Chem 5, 631–644 (1976). https://doi.org/10.1007/BF00648221

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