Abstract
Ion-pair formation between Ca2+ and α-isosaccharinate, Ca2+ + ISA-CaISA⇄+, was studied by two independent methods: an ion-exchange and a potentiometric method (Ca-selective electrode). The two methods gave similar values for the complexation constant, log K oCaISA+ at I = 0, (22 ± 1)°C. The ion-exchange method gave a value of log K CaISA+o = (1.8 ± 0.1) and the potentiometric method resulted in logK oCaISA+ = (1.78 ± 0.04). These values are in good agreement with the estimated value, log K oCaISA+ = 1.7, based on the formation of a Ca-gluconate ion pair.
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REFERENCES
L. R. Van Loon and M. A. Glaus, J. Environ. Polym. Degrad. 5, 97 (1997).
M. A. Glaus, L. R. Van Loon, S. Achatz, A. Chodura, and K. Fischer, Anal. Chim. Acta 398, 111 (1999).
K. Vercammen, M. A. Glaus, and L. R. Van Loon, Radiochim. Acta 84, 221 (1999).
K. Vercammen, M. A. Glaus, and L. R. Van Loon, Radiochim. Acta 89, 393 (2001).
L. R. Van Loon, M. A. Glaus, A. Laube, and S. Stallone, Radiochim. Acta 86, 183 (1999).
E. Wieland, J. Tits, P. Spieler, and J. P. Dobler, Mater. Res. Symp. Proc. 506, 573 (1998).
L. R. Van Loon and M. A. Glaus, Experimental and Theoretical Studies on Alkaline Degradation of Cellulose and Its Impact on the Sorption of Radionuclides. PSI-Bericht 98-07, Paul Scherrer Institute, Villigen, Switzerland. Also published as NAGRA Technical Report NTB 97-04, NAGRA, Wettingen, Switzerland, 1998.
K. Vercammen, M. A. Glaus, and L. R. Van Loon, Acta Chem. Scand. 53, 241 (1999).
L. R. Van Loon, M. A. Glaus, and K. Vercammen, Acta Chem. Scand. 53, 235 (1999).
D. Rai, N. J. Hess, Y. Xia, L. Rao, H. M. Cho, R. C. Moore, and L. R. Van Loon, J. Solution Chem. 32, 665 (2003).
J. Schubert, J. Phys. Coll. Chem. 52, 340 (1948).
J. Schubert, E. R. Russell, and L. S. Myers, Jr., J. Biol. Chem. 185, 387 (1950).
L. R. Van Loon and Z. Kopajtic, Radiochim. Acta 54, 193 (1991).
N. C. Li, W. M. Westfall, A. Lindenbaum, J. M. White, and J. Schubert, J. Am. Chem. Soc. 79, 5864 (1957).
J. Buffle, Complexation Reactions in Aquatic Systems: An Analytical Approach (Ellis Horwood, Wiley, New York, 1988).
R. A. Robinson and R. H. Stokes, Electrolyte Solutions: The Measurement and Interpretation of Conductance, Chemical Potential and Diffusion in Solutions of Simple Electrolytes, 2nd edn. (Butterworths, London, 1959).
D. Rai, L. Rao, and Y. Xia, J. Solution Chem. 27, 1109 (1998).
M. van Duin, J. A. Peters, A. P. G. Kieboom, and H. van Bekkum, Trav. Chim. Pays-Bas 108, 57 (1989).
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Van Loon, L.R., Glaus, M.A. & Vercammen, K. Stability of the Ion Pair Between Ca2+ and 2-(Hydroxymethyl)-3-Deoxy-D-erythro-Pentonate (α-Isosaccharinate). J Solution Chem 33, 1573–1583 (2004). https://doi.org/10.1007/s10953-004-1394-8
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DOI: https://doi.org/10.1007/s10953-004-1394-8