Recent advances of the thermodynamic behavior of tin species in aqueous solution

Author:

Yang D.-R.1,Wu Z.-L.2,Ren K.1,Dong P.1,Zhang D.1,Yang B.1,Liang F.1

Affiliation:

1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China + National Engineering Research Center for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, China

2. College of Materials Science and Engineering, Shenzhen University, Shenzhen, China + Zhejiang LAMP Co., Ltd., Wenzhou, China

Abstract

Thermodynamic behavior has been extensively used to evaluate the stability of materials and predict the direction of the chemical reaction at different pH values, temperatures, potentials, and ion concentrations. Although researching efforts on Sn species in an aqueous solution system (Sn/H2O) of acid, alkali, and salt have been reported, scattered data leads to the inefficiency of a thermodynamic method in the practical application. This article provides a brief review on the potentialpH diagram for Sn/H2O system, which reflects the thermodynamic behavior of Sn species in an aqueous solution and extracts thermodynamic data for the practical application of Sn species. Firstly, the relationship of the thermodynamic behavior, potential-pH diagram, and equilibrium relations of Sn species for Sn/H2O system was overviewed. Additionally, the potential-pH diagram of Sn/H2O system at different temperatures (298 K, 373 K, and 550 K), dissolved Sn activities (1, 10?1, 10?3, and 10?6), and the potential-pH diagram of the Sn species in a chloridion aqueous solution (Sn/H2O-Cl) was summarized. Finally, the application prospect of the potential-pH diagram for Sn/H2O system was investigated in the intelligent simulation of Sn metallurgy and the practical application of Sn materials.

Publisher

National Library of Serbia

Subject

Materials Chemistry,Metals and Alloys,Mechanics of Materials,Geotechnical Engineering and Engineering Geology

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