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Current issue   Ukr. J. Phys. 2015, Vol. 60, N3, p.258-262
doi:10.15407/ujpe60.03.0258    Paper

Gajevskiy V.R.

National University of Water Management and Nature Resources Use
(11, Soborna Str., Rivne 33028, Ukraine; e-mail: gvr63@list.ru)

Electric Conductivity of Carbon Dioxide Aqueous Solutions

Section: Soft matter
Original Author's Text: Ukrainian

Abstract: The system CO2 + H2O with the concentration of free carbon dioxide varying from those close to the saturation one to the equilibrium one under environmental conditions has been studied. The dependences of ionic component concentrations on the solution pH are determined. Simultaneous measurements of the electric conductivity and the pH of the solution show that the contributions of ionic components in the carbonate-water system to the electric conductivity of the solution are additive and satisfy the Kohlrausch law with an error not exceeding ±0.5%.

Key words: aqueous solutions of electrolytes, conductivity, carbonate-water system, potentiometric method.