HYDRATES IN AQUEOUS SOLUTION. 



TABLE 1. 



Jones and Chambers* then determined the conductivities of the same 

 solutions of the same substances whose freezing-points they had measured, 

 to see whether any minimum manifested itself in the conductivity results; 

 or whether these results showed any irregularity whatsoever. This was 

 studied with especial care, over the region of concentration in which the 

 freezing-point minimum had occurred. The conductivity results were 

 perfectly normal at all concentrations, the molecular conductivity increasing 

 regularly with the concentration, just as would be expected. 



To account for these results the following theory was proposed by Jones :f 



"In concentrated solutions these chlorides and bromides must take up a part of the 

 water, forming complex compounds with it, and thus removing it from the field of action 

 as far as freezing-point lowering is concerned. The compound, which is probably very 

 unstable, formed by the union of a molecule of the chloride or bromide with a large number 



*Amer. Chem. Journ., 23, 99 (1900). 

 t/W(J. t 23, 103 (1900). 



