THE COLLOID-CHEMISTRY OF SOAPS 



153 



the sodium palmitate/water system, permanent emulsification 

 results, as evidenced in the right-hand bottle of Fig. 89. The 

 higher soaps, moreover, maintain their high hy drat ion values (as 

 liquids) through a considerable range of temperature, wherefore 



further increase in temperature does not serve so quickly to break 

 an emulsion stabilized in these higher soaps as in the case of the 

 lower ones. The higher soaps, in other words, do not pass as 

 quickly as the lower ones into the class of the true solutions of 

 soap in water. 



