Perelygin Yuriy Petrovich, Doctor of engineering sciences, professor, head of sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) email@example.com
Kolchugina Irina Gennad'evna, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) firstname.lastname@example.org
Rashevskaya Irina Vladimirovna, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) email@example.com
Flyagin Aleksandr Aleksandrovich, Associate professor, sub-department of chemistry and methods of chemistry teaching, Penza State University (40 Krasnaya street, Penza, Russia) dep_xitimox.pnzgu.ru
Background. Since aqueous solutions of sulfuric acid with addition of aluminum salts, copper or cadmium are widely used in electroplating of copper, cadmium and oxide coatings on aluminium and its alloys , and also in obtaining light metals , a study of the effect of concentration of sulfuric acid and sulfates of these metals on the electrical conductivity of these solutions is a very urgent task.
Materials and methods. The specific conductivity of the studied solutions was determined on a CAL-1M conductivity meter at a temperature of 25 OC. The solutions were prepared in distilled water using reagents the “хч” brand.
Results. The authors determined the specific conductivity of the sulfuric acid solution with addition of aluminum salts, copper or cadmium, as well as obtained mathematical dependences of the specific conductivity of the examined sulphate solutions.
Conclusions. As a result of research, there have been developed accelerated techniques for analytical determination of sulphates of aluminium, copper or cadmium in sulfuric acid solutions.
1. Spravochnik po elektrokhimii [Electrochemistry reference book]. Ed. by A. M. Sukhotin. Leningrad: Khimiya, 1981, 488 p.
2. Ivanov A. A. Zhurnal neorganicheskoy khimii [Journal of inorganic chemistry]. 1988, vol. 33, no. 8, pp. 2127–2133.
3. Ivanov A. A. Zhurnal neorganicheskoy khimii [Journal of inorganic chemistry]. 2008, vol. 53, no. 12, pp. 2081–2097.
4. Ivanov A. A., Zaytseva L. A., Selin A. N. Zhurnal neorganicheskoy khimii [Journal of inorganic chemistry]. 1989, vol. 34, no. 4, pp. 1040–1044.
5. Filatova E. G. Elektroprovodnost' vodnykh rastvorov elektrolitov, potentsial'no prigodnykh dlya sozdaniya novykh metodov polucheniya legkikh metallov: dis. kand. tekhn. nauk: 05.16.02 [Electroconductivity of aqueous electrolytic solutions, potentially qualified for development of new methods of light metals obtainment: dissertation to apply for the degree of the candidate of engineering sciences]. Irkutsk: Irkutskiy gos. tekhn. un-t, 2003, 145 p.
6. Begunov A. I., Filatova E. G. Vestnik Irkutskogo gosudarstvennogo tekhnicheskogo universiteta [Bulletin of Irkutsks State Technical University]. 2003, no. 1 (13), pp. 84–86.
7. Dobosh D. Elektrokhimicheskie konstanty. Spravochnik dlya elektrokhimikov [Electrochemical constants. Reference book for electrochemists]. Moscow: Mir, 1980, 365 p.
8. GOST 9.305–84 Pokrytiya metallicheskie i nemetallicheskie neorganicheskie [State standard GOST 9.305–84 Metallic and nonmetallic inorganic coatings]. Moscow: Gosstandart, 1988, 183 p.
9. Patent 2138582 Russian Federation, MPK C25C1/02. Sposob polucheniya alyuminiya [A method for aluminum obtainment]. Begunov A. I. Appl. 17.04.1997; publ. 27.09.1999.
10. Kotik F. T. Uskorennyy kontrol' elektrolitov, rastvorov i rasplavov [Accelerated control of electrolytes, solutions and melts]. Moscow: Mashinostroenie, 1978, 191 p.
11. Aver'yanov E. E. Spravochnik po anodirovaniyu [Anodic oxidation reference book]. Moscow: Mashinostroenie, 1988, 224 p.