THE OSMOTIC AND ACTIVITY COEFFICIENTS OF SOME BOLAFORM SULFONATES¹

Evaluated activity and osmotic coefficients for aqueous solutions: thirty-six uni-bivalent electrolytes

“…The correlating equations which have been used to date are not capable of giving an adequate representation of what is believed to be reliable experimental data forthefollowing five electrolytes of charge type 1-2: [113] Type of Measurement(s) freezing point• depression [34,99,102], vapor pressure [SI,103], isopiestic [20,104], and electromotive force [34] vapOl• pre:;surc osmometry and isopiestic [16,17] vapor pressure osmometry [17] 1,14-diphenyl tetradecane vapor pressure disulfonic acid, C26H3SS206 osmometry [17] lithium 1,S-diphenyloctane vapor pressure disulfonate~ Li2C:wH24S206 osmometry• [17] We have chosen not to present evaluations for these systems at the present time.…”

“…[16,171 for 4,4' -bibenzyl disulfonic acid are not in good agreement .with each other. The latter data set [17] is to be preferred over the. one published earlier [15].…”

“…For these compounds, the coefficients ofthe equation of Pitzer and Mayorga [108] are, with the exception of some results from Groves et ai. [87] and Bonner and Rogers [17], also based upon the tables of Robinson and Stokes [106]. Wu and Hamer [107] utilized a larger data base than the other evaluations [105,106,108], but did not state how the various data sets were weighted to obtain their final tables of recommended values.…”

“…Data Employed in Generation of Correlating EquationsBonner and Rogers(17).Vapor pressure Bonner, Holland and Smith [16]. Isopiestic measurements, reference electrolyte was NaCl [IS].…”

“…Recommended Values for the mean activity and osmotic coefficient of lithium m-benzene disulfonate,Li2. C 6 H 4 S z 0 6' in H 2 0 at 298.15 KGOLDBERGExperimental Data Employed in Generation of Correlating EquationsBonner and Rogers[17]. Vapor pressure osmometry.…”