Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 3, pp. 381−384.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © V.P. Yurkinskii, E.G. Firsova, I.N. Feﬁ lov, 2012, published in Zhurnal Prikladnoi Khimii, 2012, Vol. 85, No. 3, pp. 407−410.
AND CORROSION PROTECTION OF METALS
Electrical Conductivity of Lithium Chloride Solutions
in the Propanol–Water System
V. P. Yurkinskii, E. G. Firsova, and I. N. Feﬁ lov
St. Petersburg State Polytechnic University, St. Petersburg, Russia
e-mail: ofﬁ email@example.com
Received January 23, 2012
Abstract—Electrical conduction of lithium chloride solutions in the propanol–water system was studied in the
temperature range by using the conductometric method. The electrical conductivity of the solutions was determined
in relation to the contents of water and lithium chloride.
Recently, solutions of lower aliphatic alcohols have
been ﬁ nding increasingly wide application in modern
technological practice [1–3].
It is known that the physicochemical properties of
alcohols strongly depend on their content of dissolved
water [4, 5]. A topical task in this regard is to develop
a proximate method for evaluating the content of
water in alcoholic solutions. In development of a
conductometric technique for determining the content
of water in aqueous-alcoholic solutions, it is necessary
to know their electrical conductivity. There is published
evidence about the electrical conductivity of aqueous-
organic electrolytes, but the effect of the water content
on this parameter has been insufﬁ ciently studied .
Proceeding with previous studies [6, 7], we examined
the electrical conductivity of lithium chloride solutions
in the propanol–water system in relation to temperature
and salt concentration.
Our study was performed in the temperature range
290–323 K. The experimental procedure has been
described previously [6, 7]. We used propanol of
chemically pure grade. The concentration of lithium
chloride was varied within the range 0.010–2.566 M,
and the content of water in the mixtures, from 0 to
50 vol %.
Using the experimental data, we determined the
electrical conductivity χ (S cm
) of the solutions under
study and obtained temperature dependences χ = f(T)
and isotherms χ = f(c
) at varied content of water in
the aqueous-alcoholic solution. The experimental data
were processed by using standard computer software
Figure 1 shows a typical example of the χ = f(T)
Fig. 1. Electrical conductivity χ vs. temperature T for lithium
chloride solutions in the propanol–water system (2 vol %).
Lithium chloride concentration c
(M): (1) 0.010, (2) 0.021,
(3) 0.041, (4) 0.062, (5) 0.083, and (6) 0.104.
χ, S cm