Abstract
The solution heats of glycine in aqueous urea have been determined by calorimetry at 298 K (molality 0–13) and 313 K (molality 0–22). The solution heat of the amino acid is described by the linear dependence of this quantity on the square root of the urea molality. The enthalpy, entropy, and Gibbs energy of the transfer of glycine from water to aqueous urea, as well as the heat capacity, entropy variation, and Gibbs energy of glycine solution have been calculated for the temperature range 273–323 K. It is found that urea additions to water reverse the sign of the heat capacity of solution.
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References
Y. Nozaki and C. Tanford, J. Biol. Chem., 238, No. 12, 4074–4081 (1963).
M. Abu-Hamdlyyah and A. Shehabuddin, J. Chem. Eng. Data, 27, 74–76 (1982).
T. F. Wegrzyn and G. R. Hedwig, J. Chem. Thermodyn., 16, No. 9, 843–851 (1984).
B. Palecz and S. Taniewska-Osinska, Thermochim. Acta, 173, 295–299 (1990).
A. V. Bekeneva, A. V. Kustov, and V. P. Korolev, Zh. Fiz. Khim., 78, No. 11, 1697–1700 (2004).
A. V. Kustov and V. P. Korolev, Thermochim. Acta, 447, 212–214 (2006).
I. N. Mezhevoy, E. V. Parfenyuk, and V. G. Badelin, Biofizika, 48, No. 4, 585–588 (2003).
V. A. Klimova, Basic Analytical Micromethods for Organic Compounds [in Russian], Khimiya, Moscow (1967).
A. V. Kustov, A. A. Emel’yanov, A. F. Syshchenko, et al., Zh. Fiz. Khim., 80, No. 9, 1724–1728 (2006).
I. Wadsö and R. N. Goldberg, Pure Appl. Chem., 73, No. 10, 1625–1639 (2001).
V. G. Badelin, V. I. Smirnov, and I. Mezhevoy, Zh. Fiz. Khim., 76, No. 7, 1299–1302 (2002).
C. N. Spink and I. Wadsö, J. Chem. Thermodyn., 7, No. 6, 561–572 (1975).
H. S. Frank and F. Franks, J. Chem. Phys., 48, No. 10, 4746–4757 (1968).
E. G. Finer, F. Franks, and M. Tait, J. Am. Chem. Soc., 94, No. 13, 4424–4429 (1972).
V. P. Korolev, D. V. Batov, V. N. Vandyshev, and O. A. Antonova, Thermodynamics of Nonelectrolyte Solutions [in Russian] (Treatises of the Institute of Solution Chemistry, USSR Academy of Sciences), Ivanovo (1989), pp. 13–20.
E. V. Ivanov and V. K. Abrosimov, Biologically Active Substances in Solutions. Structure. Thermodynamics. Reactivity [in Russian], Nauka, Moscow (2001), pp. 110–183.
G. Somsen, Reports from Symposium on Thermodynamics and Thermochemistry, Lund (1963).
B. Palecz, Thermochim. Acta, 180, 199–202 (1991).
K. G. Davis and T. H. Lilley, ibid., 107, 267–276 (1986).
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Translated from Zhurnal Strukturnoi Khimii, Vol. 48, No. 4, pp. 717–723, July–August, 2007.
Original Russian Text Copyright © 2007 by V. P. Korolev, D. V. Batov, N. L. Smirnova, and A. V. Kustov
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Korolev, V.P., Batov, D.V., Smirnova, N.L. et al. Thermodynamics of glycine solution in aqueous urea. Rule \(\sqrt m \) . J Struct Chem 48, 666–672 (2007). https://doi.org/10.1007/s10947-007-0100-2
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DOI: https://doi.org/10.1007/s10947-007-0100-2