ELECTRICAL CONDUCTIVITY OF AQUEOUS SOLUTIONS CONTAINING SULFURIC ACID AND SULFATE ALUMINUM, COPPER OR CADMIUM 

Perelygin Yuriy Petrovich, Doctor of engineering sciences, professor, head of sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) pyp@pnzgu.ru
Kolchugina Irina Gennad'evna, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) defmaybe90@gmail.com
Rashevskaya Irina Vladimirovna, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia) irinarashevskaya@mail.ru
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

 544.622

 10.21685/2307-9150-2017-2-5

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 [8], and also in obtaining light metals [9], 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.

electrical conductivity, solutions of sulfuric acid with addition of sulphates of aluminium, copper or cadmium.

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