BEHAVIOR OF SOLUTIONS 35 



THE BEHAVIOR OF SOLUTIONS AT THE CRITICAL 

 TEMPERATURES— A PRELIMINARY REPORT. 



PERRY A. BOND. 



The writer has felt that at or about the critical temperature 

 of solutions, there might be found phenomena which would 

 throw light on the mechanism of the formation of solution. The 

 question of whether the solvent is chemically combined with the 

 solute, whether in all or only in special cases, is the final object 

 of the research. 



Thus far the work, carried on in liquid sulphur dioxide, has 

 given only hints of what may be expected, but enough has been 

 accomplished to show that interesting results may appear. 



In addition to the question of the solubility of a solid in the 

 gaseous phase which is now being studied, it is expected that the 

 electrical conductivity of the solutions as they approach the criti- 

 cal temperature will be investigated. The great problem in a 

 practical way lies in the fact that the pressures under which 

 all the experiments must be made lie close to 80 atmospheres, 

 and in glass tubes which are essential for the work as outlined, 

 the risk of explosion and consequent loss of calibrated instru- 

 ments is very great. 



A more extensive report will be made in next year's Pro- 

 ceedings. 

 Department op Chemistry, 



State Teachers College. 



