ACTIVITY COEFFICIENT OF LITHIUM CHLORIDE IN ANHYDROUS DIMETHYL SULFOXIDE SOLUTIONS

Activity coefficient measurements of LiCl in dimethyl sulfoxide have been made by the emf method and the cryoscopic method. The emf measurements are in good agreement with similar emf measurements in the literature, but not with cryoscopic measurements in the literature. By applying an empirical correction for temperature gradients resulting from heat transfer in the steady state, agreement is obtained between our cryoscopic measurements and the emf measurements. The systematic errors from heat transfer phenomena in DMSO solutions appear to have been too large thus far for accurate cryoscopic measurements. © 1969, The Electrochemical Society, Inc. All rights reserved.