SYSTEM NAPHTHALENE-CHLOKOBENZENE-PHENOL, ETC. 45 



20 ce. of each solution was put into a öO ce. bottle witli a 

 closely fitting glass stopper, and then 20 cc. of the salt solution 

 was added. All the seven bottles were placed in the thermostat. 

 After 30 minutes the bottles were shaken until the liquids had 

 become perfectly milky. This Nvas repeated several times at 

 regular intervals. One or two hours after the last shaking, 

 when the liquids had cleared one after another, the aqueous solu- 

 tions, were sucked out and titrated in the manner described 

 above. In the following tables c is the spatial concentration of 

 phenol in the salt solution, C is the empirical molar fraction of 

 phenol in the oil phase, which was calculated from the quantity 

 of phen(jl added and that taken up by the water phase. 6i is 

 the molar fraction of simple phenol molecules (CßHoO) in the 

 colorobenzene phase, calculated in the following manner. 



C = 



1 + 2 c; ' 



K3 + 2 6y^ 





. (' - S I ^G , / ^G se 



' ' 'V 2 (3-2 G) y 4 (3-2 Of 27 (3-2 Gf 



si ^G I .St a it^' 



V 2 (3-2 G) V 4 (3-2 Gf 27 (3-2 Gf ' 



In more concentrated solutions or at lower temperatures where 

 iv is small the value of d is almost equal to 



'V 3-2 C ■ 



