Abstract
Numerical simulations of a weathering profile on granite containing 10–8 mol/L Sn (whose average content in the Earth’s crust is 0.00025%) by the SELECTOR program package indicate that cassiterite SnO2 solubility under both oxidizing and reducing conditions is no higher than 10–10 mol/L within the pH range of 3 to 11. The only ion occurring in equilibrium with cassiterite is the neutral Sn(OH)4(aq) 0 complex, which was detected in both oxidizing and reducing environments.
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References
A. G. Betekhtin, Mineralogy: A Textbook (KDU, Moscow, 2008) [in Russian].
M. V. Borisov, and Yu. V. Shvarov, Thermodynamics of Geochemical Processes. A Textbook (MGU, Moscow, 1992) [in Russian].
K. V. Chudnenko, Thermodynamic Modeling in Geochemistry: Theory, Algorithm, and Software (GEO, Novosibirsk, 2010) [in Russian].
I. K. Karpov, Computer Physicochemical Modeling in Geochemistry (Nauka, Novosibirsk, 1981) [in Russian].
V. A. Kopeikin, and A. S. Mikhailov, “Solubility and silica species in diluted solutions at normal conditions,” Dokl. Akad. Nauk SSSR 191 (4) 917–920 (1970).
V. A. Kopeikin, “Silica solubility and silicon ions in aqueous solutions,” in International Seminar “Quartz, Silica”, Syktyvkar, Russia, 2004 (Syktyvkar, 2004), pp. 222–223 (2004).
S. R. Krainov, B. N. Ryzhenko, and V. M. Shvets, Geochemistry of Groundwaters, Theoretical, Applied, and Ecological Aspects (Tsent LitNefteGaz, Moscow, 2012) [in Russian].
I. V. Morozov, A. I. Boltalin, and E. V. Karpova, Redox Processes. Electron Library of the Chemical Faculty (MGU, Moscow, 2003) [in Russian].
G. B. Naumov, B. N. Ryzhenko, and I. L. Khodakovskii, Reference Book of Thermodynamic Values (for Geologists) (Atomizdat, Moscow, 1971) [in Russian].
R. H. Smith, and A. E. Martell, Critical Stability Constants (Plenum Press, New York, 1977), Vol. 4. Thermal Constants of Substances (1965–1979).
A Reference Book, Ed. by V. P. Glushko (Nauka, Moscow), Vol. 1—10 [in Russian].
D. R. Turner, M. Whitefield, and A. G. Dickson, “The equilibrium speciation of dissolved components in freshwater and seawater at 25°C and 1 atm pressure,” Geochim. Cosmochim. Acta 45(6) 855–881 (1981).
G. V. Voitkevich, A. E. Miroshnikov, A. S. Povarennykh, and V. G. Prokhorov, A Brief Handbook on Geochemistry (Nedra, Moscow, 1977) [in Russian].
A. A. Yaroshevskii, “Abundances of chemical elements in the Earth’s crust,” Geochem Int. 44 (1), 54–62 (2006).
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Original Russian Text © V.A. Kopeikin, 2017, published in Geokhimiya, 2017, No. 4, pp. 368–371.
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Kopeikin, V.A. Physicochemical model of tin behavior in weathering profiles. Geochem. Int. 55, 389–392 (2017). https://doi.org/10.1134/S0016702917040048
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DOI: https://doi.org/10.1134/S0016702917040048