400a 



a2 0.4 ae o.s lo 

 CONCENTRATION (PERCENT) 



0.£ 0.4 0.6 0.8 1.0 



SQUARE ROOT OF WT. NORMALITY 



03 - 



t 



0£ ■ 



0,2 0.4 0.6 0.8 1.0 



SQUARE ROOT OF VOL. NORMALITY 



Fig. 1. Effects of surfactant concentration on several properties of surfactants. A. 

 Generalized ranges of values for surface tension and interfacial tension for the ma- 

 jority of surfactants. B. Equivalent conductances for a series of alkyl sulfonic acids 

 (numbers indicate length of the carbon chains). C. Cation transference numbers for 

 a series of alkyl amine hydrochlorides. D. Osmotic coefficient of sodium tetra- 

 decylsulfate. (Modified after Schwartz and Perry (1) by permission of Interscience 

 Publishers, Inc., New York.) 



