ELECTROCHEMICAL DEPOSITION AND DISSOLUTION OF THALLIUM OXIDE (III)

Gulziya A.  SEILKHANOVA; Andrey P.  KURBATOV; Yenlik Zh.  USSIPBEKOVA; Andrey V.  BEREZOVSKIY; Michael K.  NAURYZBAEV

doi:10.24193/subbchem.2017.4.36

Authors

Gulziya A. SEILKHANOVA Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Kazakhstan. Email: g_seilkhanova@mail.ru. https://orcid.org/0000-0002-9939-8316
Andrey P. KURBATOV Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Kazakhstan. Corresponding author: g_seilkhanova@mail.ru. https://orcid.org/0000-0003-1883-310X
Yenlik Zh. USSIPBEKOVA Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Kazakhstan. Corresponding author: g_seilkhanova@mail.ru. https://orcid.org/0000-0001-8367-1800
Andrey V. BEREZOVSKIY Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Kazakhstan. Corresponding author: g_seilkhanova@mail.ru.
Michael K. NAURYZBAEV Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Kazakhstan. Corresponding author: g_seilkhanova@mail.ru.

DOI:

https://doi.org/10.24193/subbchem.2017.4.36

Keywords:

thallium, thallium(III) oxide, electrolysis, voltammetry, precipitation, dissolution/solution

Abstract

The regularities of precipitation and dissolution of thallium (III) oxide were studied by using cyclic and linear voltammetry. It is established that at 1.5V potential, a peak corresponding to the process of oxidation of monovalent to trivalent thallium is observed, according to: Tl⁺ → Tl³⁺+ 2e^-. Two peaks are observed in the cathode region, at 0.65V and -0.17V potential values. At E = -0.17V, the thallium oxide Tl₂O₃ dissolves, as at E = 0.65V, the intermediate products of the hydrolysis of trivalent thallium (Tl(OH)²⁺, Tl (OH)²⁺) are probably recovered. It was found that with increase of solution pH, the dissolution processes of thallium oxide intensified, while the optimum pH value was 11, also activation energy of the electrodeposition of thallium(III) oxide were calculated.

References

Korovina S.S Rare and Scattered elements. Chemistry and technology. V. 1. M: МISiS, 1996, 375 (in Russian).

Zelikman А.N., Korshunov B.G. Metallurgy of rare metals: textbook for high school. – 2nd edition, elaboration and edition - М.: Metallurgy, 1991, 432 (in Russian).

Bolshakov К.А. Chemistry and technology of rare and scattered elements. – М.: High school, 1976, 1, 295 (in Russian).

Maher J.P. Aluminium, gallium, indium, and thallium // Annu. Rep. Prog. Chem., Sect. A, 2003, 99, 43–62.

Busev А.I., Tipzova V.G. Analytic chemistry of thallium. Success of chemistry. – M: Nauka, 1960, 29, 8, 1011.

Kuketaev Т. А. Optic and nuclear properties of KDP, activated by thallium ions // Khabarshy (Herald), 2008, 69(in Russian)

Damaskin B.B., Petry О.А., Zirlina G.А. Electrochemistry. – 2 ed., edited and added — М.: Chemistry, Kolos, 2006, 672 (in Russian).

Ussipbekova Ye. Zh., Seilkhanova G.A., Scholz F., Kurbatov А.P., Berezovskiy А.V., Nauryzbaev M.K. Electrochemical refining of thallium in the neutral space// News NАN RK.Chemical Serias. № 5 (407), 2014, 64 – 69 (in Russian).

Eremin V.V., Kargov S.I., Uspenskaya I.А., Kuzmenko N.Е., Lunin V.V. The basis of physical chemistry. Theory and problems. – М.: Exam, 2005, 480 (in Russian).

Gorbachev S.V. Influences of temperature on electrolysis, as kinetic research methods of the nature of electrochemical processes//the 4th session on electrochemistry. Collection of scientific papers – М.: AN USSР, 1959, 61-71 (in Russian).

Keshe G. Corrosian of metals. Physic-chemical principles and relevant problems // М. : Metallurgy, 2004, 400 (in Russian).

Seilkhanova G.A., Ussipbekova Ye.Zh., Jeyabhrathi Ch., Scholz F., Kurbatov A.P., Nauryzbaev M.K., Berezovskiy A.V. Electrochemical deposition and dissolution of thallium from sulfate solutions // Internatoinal journal of analytical chemistry. vol. 2015, doi:10.1155/2015/357514.

Zirlina G.А. Electro catalysis via thallium oxide anodes // Electrochemistry. 1995, 31, 2, 219-221 (in Russian).

Utility patent model № 1514 Electrochemical methods of obtaining pure thallium, authors Seilkhanova G.А., Kurbatov А.P., Nauryzbaev M.K., Ussipbekova Ye.Zh., Berezovskiy А.V., Uteshova А.А. – published. 30.06.2016; Bulletin. - № 6б (in Russian).

Seilkhanova G.А., Kurbatov А.P., Ussipbekova Ye.Zh., Berezovskiy А.V., Elechtrochemical behavior of thallium in various elecrtrolytes // "KazNU herald" Chemical serials, 2014, 2, 41 - 48 (in Russian).