ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 8, Number 1
JKCSEZ 8(1)
February 20, 1964 

The viscosities of strong electrolytic solutions, such as KCl, KI and NaI have been measured over a fairy wide range of concentration variation (from 0.00002 to 3.7M). It was hoped that a study of the data in the light of modern theories on solution might reveal new relation between viscosity and surface tension of electrolytic solution. To secure more accurate measurements of viscosity and surface tension of the solutions, Ostwald viscometer was made with pyrex glass and modified the timing system for the transit of the meniscus with a new electronics system and with a pulse counter. As the experimental data obtained were in good agreement with the Jone's values, Jones-Dole equations for the electrolytic solutions were deduced, ηKCl = 1 + 0.0052√c - 0.01612c + 0.00808c2 at 30℃ ηKI = 1 + 0.0220√c - 0.01290c + 0.02988c2 at 25℃ ηNaI = 1 + 0.0240√c - 0.0640c + 0.03268c2 at 25℃ Gruneisen effect appeared in the dilute solution, whereas anti-Gruneisen effect was found for the extremely dilute solution. No satisfactory interpretation for the variation of the viscosity with concentration can be found at the present.