Abstract
The freezing process in i-PrOH- and tert-BuOH-water systems were investigatedto obtain reliable liquid=nsolid phase diagrams by differential scanning calorimetry(DSC), especially focusing on formation of metastable solid phases. In addition,n-BuOH, sec-BuOH, and i-BuOH were studied within their solubility limits. Inmost systems studied, there exist metastable solid phases and, with increasingbranching of alkyl groups, the number of metstable solid phases increases. Themost complicated is i-PrOH-water where curious phenomena were found,probably because of the abnormally high viscosity of the solution at low temperatures.The relation between hydration in the liquid and formation of solid phases isdiscussed. It is suggested that the positional relation between methyl groups andalcoholic OH groups plays an important role; the increase in number ofalphamethyl group seems to strengthen hydration and stabilizes solid hydrates.
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REFERENCES
J. C. Rosso, and L. Carbonnel, C. R. Acad. Sci. Ser. C, p. 1012 (1969).
J. B. Otto, J. R. Goates, and B. A. Waite, J. Chem. Thermodyn., 11, 739 (1979).
F. Franks and J. E. Desnoyers, in Water Science Reviews, Vol. 2, F. Franks, ed. (Cambridge Univ. Press, Cambridge, 1985), p. 171.
K. Takaizumi and T. Wakabayashi, Cryo-Letters 16, 41 (1995).
K. Takaizumi and T. Wakabayashi, J. Solution Chem. 26, 927 (1997).
H. Endo and O. Nomoto, Bull. Chem. Soc. Jpn. 46, 3004 (1973).
M. V. Kaulgud and K. S. M. Rao, J. Chem. Soc., Faraday Trans. 1, 2237 (1979).
K. Iwasaki and T. Fujiyama, J. Phys. Chem. 81, 1908 (1977).
K. Iwasaki and T. Fujiyama, J. Phys. Chem. 83, 463 (1979).
N. Ito, T. Kato, and T. Fujiyama, Bull. Chem. Soc. Jpn. 54, 2573 (1981).
K. Nakanishi, K. Ikari, S. Okazaki, and H. Touhara, J. Chem. Phys. 80, 1656 (1984).
H. Tanaka, K. Nakanishi, and H. Touhara, J. Chem. Phys. 81, 4065 (1984).
G. W. Euliss and C. M. Sorensen, J. Chem. Phys. 80, 4767 (1984).
H. Tanaka, K. Nakanishi, and H. Touhara, J. Chem. Phys. 80, 1656 (1984).
K. Nishikawa, Y. Kodera, and T. Iijima, J. Phys. Chem. 91, 3694 (1987).
K. Nishikawa, H. Hayashi, and T. Iijima, J. Phys. Chem. 93, 6559 (1989).
K. Nishikawa and T. Iijima, J. Phys. Chem. 94, 6227 (1990).
H. Tanaka and K. Nakanishi, Fluid Phase Equilibria 83, 77 (1993).
K. Tamura, A. Ohsaki and Y. Koga, in Symposium of Solution Chemistry, Sapporo, Japan p. 114 (1998).
F. Franks and H. T. Smith, Trans. Faraday Soc. 64, 2962 (1968).
C. De Visser, G. Perron, and J. E. Desnoyers, Can. J. Chem. 55, 856 (1977).
S. Okasaki, K. Nakanishi, and H. Touhara, J. Chem. Phys. 78, 454 (1983).
D. R. Simonsen and E. R. Washburns, J. Amer. Chem. Soc. 68, 235 (1946).
F. H. Getman, J. Amer. Chem. Soc. 62, 2179 (1940).
J. Oesterle, F. Franks, and T. Auffret, Pharm. Develop. Technol. 3, 175 (1998).
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Takaizumi, K. Liquid–Solid Phase Diagrams of PrOH–Water and BuOH–Water Systems from Differential Scanning Calorimetry. Journal of Solution Chemistry 29, 377–388 (2000). https://doi.org/10.1023/A:1005110719402
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DOI: https://doi.org/10.1023/A:1005110719402