Abstract
Glass-forming composition regions of aqueous CH3COOM (M = Li, Na, K, Rb, Cs, and Tl), CF3COOM (M = Li, Na, K, Rb, and Cs), and Et4NX (Et4 = C2H5, X = OH, CH3COO, Cl, Br, NO3, and SCN) solutions are reported as a function of water concentration R (R = moles of water per moles of salt). Glass transition temperatures (T g) were measured by a simple differential thermal analysis (DTA) method with a cooling rate of about 600 K-min−1. The T g of all solutions decrease with increasing R (decreasing salt concentration). It is found that T g at the same R value decrease in the order Na+ > Li+ > K+ > Rb+ > Cs+ in all glass-forming composition regions of the alkali acetate salt and alkali trifluoroacetate salt solutions. T g for Et4NX solutions decrease in the order CH3COO− ~OH− > Cl− > Br− > NO −3 > SCN−. The effects of the cation and anion on the glass-forming behavior in these aqueous solutions are discussed.
Similar content being viewed by others
REFERENCES
C. A. Angell and E. J. Sare, J. Chem. Phys. 52, 1058 (1970); C. A. Angell, J. M. Sare, and E. J. Sare, J. Phys. Chem. 82, 2622 (1978).
A. V. Lesikar, J. Chem. Phys. 63, 2297 (1975); 66, 42636 (1977); J. Phys. Chem. 80, 1005 (1976); J. Solution Chem. 6, 81, 839 (1977).
H. Kanno, I. Shirotani, and S. Minomura, Bull. Chem. Soc. Jpn. 54, 2607 (1981).
C. A. Angell and E. J. Sare, Cryo-Lett. 1, 257 (1980).
H. Kanno, K. Shimada, and T. Katoh, Chem. Phys. Lett. 103, 219 (1983).
H. Kanno, K. Shimada, K. Yoshino, and T. Iwamoto, Chem. Phys. Lett. 112, 242 (1984).
H. Kanno, K. Shimada, and T. Katoh, J. Phys. Chem. 93, 4981 (1989).
A. Ohnishi and H. Kanno, J. Solution Chem., 25, 279 (1996).
H. Kanno and Y. Akama, J. Phys. Chem., 91, 1263 (1987).
A. Hallbrucker, E. Mayer, and G. P. Johari, J. Phys. Chem. 91, 503 (1987).
H. Kanno and Y. Akama, Chem. Phys. Lett. 72, 181 (1980); J. Phys. Chem. 91, 1263 (1987).
J. M. Gordon, G. B. Rouse, J. H. Gibbs, and W. M. Risen, J. Chem. Phys. 66, 4971 (1977); M. Gordon and J. S. Taylor, J. Appl. Chem. USSR 2, 493 (1952).
F. A. Cotton and G. Wilkinson, Advanced Inorganic Chemistry, 3rd edn. (Wiley (Interscience) New York, 1972), Chap. 6.
H. Kistenmacher, H. Popkie, and E. Clementi, J. Chem. Phys. 59, 5842 (1973).
J. Barthel, H.-J. Gores, and L. Kraml, J. Phys. Chem. 100, 1283 (1996).
K. Ichikawa, S. Kotani, M. Izumi, and T. Yamanaka, Mol. Phys. 77, 677 (1992).
M. L. Willaam, R. F. Landel, and J. D. Ferry, J. Amer. Chem. Soc., 77 3701 (1955).
E. C. Bingham, J. Phys. Chem. 45, 885 (1941).
E. R. Nightingale, in Chemical Physics of Ionic Solutions, B. E. Conway and R. G. Barradas, eds. (Wiley, New York, 1966), p. 87.
H. D. B. Jenkins and Y. Marcus, Chem. Rev. 95, 2695 (1995).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yoshimura, Y., Ohnishi, A. & Kanno, H. Cationic and Anionic Effects on the Glass Transition Temperature for Aqueous Electrolyte Solutions. Journal of Solution Chemistry 28, 1127–1136 (1999). https://doi.org/10.1023/A:1021751608253
Issue Date:
DOI: https://doi.org/10.1023/A:1021751608253