Calculating Equilibrium Constants in the SnCl2–H2O–NaOH System According to Potentiometric Titration Data


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Abstract

The potentiometric titration of tin chloride SnCl2 is performed in the concentration range of 0.00009–1.1 mol/L with a solution of sodium hydroxide NaOH. According to potentiometric titration data based on modeling equilibria in the SnCl2–H2O–NaOH system, basic equations are generated for the main processes, and instability constants are calculated for the resulting hydroxo complexes and equilibrium constants of low-soluble tin(II) compounds. The data will be of interest for specialists in the field of theory of solutions.

About the authors

L. N. Maskaeva

Ural Federal University; Ural Institute of State Fire Service of EMERCOM of Russia

Email: ka_fed-ra@mail.ru
Russian Federation, Yekaterinburg, 620075; Yekaterinburg, 620062

E. A. Fedorova

Ural Federal University

Author for correspondence.
Email: ka_fed-ra@mail.ru
Russian Federation, Yekaterinburg, 620075

R. A. Yusupov

Kazan National Research Technological University

Email: ka_fed-ra@mail.ru
Russian Federation, Kazan, 420015

V. F. Markov

Ural Federal University; Ural Institute of State Fire Service of EMERCOM of Russia

Email: ka_fed-ra@mail.ru
Russian Federation, Yekaterinburg, 620075; Yekaterinburg, 620062

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