the Mutual Solubility of Liquids. 

 Table XV.— Ethane and Water. 



203 



t. 



14 95 

 2295 

 3215 



pa. 



3359 

 4007 



Pb. 



3400 

 40-46 



0. 48-81 



Three phases. 



the pressures and critical constants differed very slightly from 

 those of pure ethane (Table II.). The difference p b —p a is 

 more than for ethane, which may, however, be due to a differ- 

 ence in the purity of the ethane itself. The pressures are so 

 nearly the same as those for pure ethane that we cannot say 

 whether the three-phase pressures are greater or less than the 

 pressures for ethane. Probably, as for the alcohol mixtures, 

 the three-phase pressure is less than the pressure of the ethane. 

 Table XVI., in which are given a few not very accurate mea- 

 surements made by one of us a few years ago, shows that for 



Table XVI. — Carbon Dioxide and Water. 



t. 



P- 



Amagat, C0 2 . 



18-85 



312 



315 



544 1 Three 

 72 . 4 J phases. 



C. 



548 

 72-6 



mixtures of carbonic acid and water the three-phase pressure 

 is probably less than the pressure of carbonic acid. For 

 this mixture the critical temperature was found to be above 

 the critical temperature of carbonic acid, as was to be 

 expected. 



University College, Dundee. 



