Abstract
The stagewise substitution equilibria \({\text{AuCl}}_{{\text{4}}}^{-}\) + iOH– = AuCl4 –i\({\text{OH}}_{i}^{-}\) + iCl–, βi in aqueous solutions at 50 and 80°C (I = 1 mol/L NaCl) have been studied. The equilibrium constants log β1 = 7.26, log β2 = 13.98, log β3 = 19.66, log β4 = 24.78 (50°C); log β1 = 6.89, log β2 = 13.13, log β3 = 18.43, and log β4 = 23.30 (80°C) have been determined. They are lower than the same constants at 25°C. The spectra of complex speciesspecies at 80°C have been calculated, and the heterogeneous equilibrium 0.5Au2O3 · xH2OS + OH– = \({\text{Au}}({\text{OH}})_{{\text{4}}}^{-}\) + 0.5xH2O of the red Au2O3 · xH2OS species at 80°C has been studied, logKS = 3.7 ± 0.2. The obtained results may be useful in geochemistry and the synthesis of gold nanoparticles.
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REFERENCES
A. Usher, D. C. McPhail, and J. Brugger, Geochim. Cosmochim. Acta 73, 3359 (2009). https://doi.org/10.1016/j.gca.2009.01.036
P. J. Murphy and M. S. Lagrange, Geochim. Cosmochim. Acta 62, 3515 (1998). https://doi.org/10.1016/S0016-7037(98)00246-4
X. Ji, X. Song, J. Li, et al., J. Am. Chem. Soc. 129, 13939 (2007). https://doi.org/10.1021/ja074447k
H. Tyagi, A. Kushwaha, A. Kumar, and M. Aslam, Nanoscale Res. Lett. 11, 362 (2016). https://doi.org/10.1186/s11671-016-1576-5
N. Y. Polyakova, A. Y. Polyakov, I. V. Sukhorukova, et al., Gold Bull. 50, 131 (2017). https://doi.org/10.1007/s13404-017-0203-2
I. Ojea-Jimenez and J. M. Campanera, J. Phys. Chem. 116, 23682 (2012). https://doi.org/10.1021/jp305830p
Shu Wang, Kun Qian, Xing Zhen Bi, and Weixin Huang, J. Phys. Chem. C 113, 6505 (2009). https://doi.org/10.1021/jp811296m
S. Mohammadnejad, J. L. Provis, and J. S. J. van Deventer, Comp. Theor. Chem. 1073, 45 (2015). https://doi.org/10.1016/j.comptc.2015.09.005
B. S. Maritz and R. Van Eldik, J. Inorg. Nucl. Chem. 38, 1545 (1976). https://doi.org/10.1016/0022-1902(76)90025-7
M. D. Durovic, Z. D. Bugarcic, F. W. Heinemann, and R. Van Eldik, Dalton Trans. 43, 3911 (2014). https://doi.org/10.1039/c3dt53140f
K. Pacławski and J. T. Sak, Min. Metall. B: Metall. 51, 133 (2015). https://doi.org/10.2298/JMMB141024017P
N. Bjerrum, Soc. Chim. Belg. Bull. 57, 432 (1948).
H. Chateau, M.-C. Gadet, and J. Pouradier, J. Chim. Phys. Phys.-Chim. Biol. 63, 269 (1966).
I. V. Mironov and L. D. Tsvelodub, Russ. J. Inorg. Chem. 45, 633 (2000).
L. Carlsson and G. Lundgren, Acta Chem. Scand. 21, 819 (1967). https://doi.org/10.3981/acta.chem.scand.21-0819
R. G. Bates and G. D. Pinching, J. Am. Chem. Soc. 71, 1274 (1949). https://doi.org/10.1021/ja01172a039
M. Beck and I. Nagypal, Chemistry of Complex Equilibria (Academiai Kiado, Budapest, 1989).
H. S. Harned and B. B. Owen, The Physical Chemistry of Electrolytic Solutions (Reinhold, New York, 1950).
K. Zabetakis, W. E. Ghann, S. Kumar, and M.-C. Daniel, Gold Bull. 45, 203 (2012). https://doi.org/10.1007/s13404-012-0069-2
A. Chakraborty, T. Ahmad, B. B. Abdullah, and S. Bhattacharjee, Chem. Eng. Trans. 45, 1939 (2015). https://doi.org/10.3303/CET1545324
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This work was performed within the state task to the Nikolaev Institute of Inorganic Chemistry of the Siberian Branch of the Russian Academy of Sciences in the field of fundamental scientific studies.
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Translated by E. Glushachenkova
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Mironov, I.V., Kharlamova, V.Y. Gold(III) Chlorohydroxo Complexes in Aqueous Solutions at Increased Temperatures. Russ. J. Inorg. Chem. 65, 420–425 (2020). https://doi.org/10.1134/S0036023620030092
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DOI: https://doi.org/10.1134/S0036023620030092