Absorption of /3 Hays by Liquids. 



187 



were used — aqueous solutions of sodium iodide, potassium 

 carbonate, potassium nitrate, and an alcoholic solution of 

 sodium iodide. The actual figures are given in Table IV. 

 for the first of these solutions in order to show the order of 

 the errors. (The error for the solid iodide is exceptionally 

 large because that salt is very hygroscopic.) 



Table IV. 

 Nal in Water 



Water 



X/p=6-154 + -063 

 6-528+ -059 

 6-515+065 

 6-881 ±-056 

 7-981 +-073 

 8-324 ±-069 

 8-611+051 

 8-281+ -094 



Nal 9-1 ,, 



Nal 31-4 ., 



Nal 393 „ 



Nal 48-24 „ 



Nal 61-76 , 



Nal (solid) 





The results are so different for different substances that it 

 is impossible to draw any general conclusions. Except 

 possibly in the case of potassium carbonate, it is clear at 



Fur: 



100 



1^50 



Nal 



(in water) 





e 



/ e 



/ ( 



o 



60 70 



f/lLU£ OF Nr 



9-0 



once that the linear relation given by Crowther for solids 

 does not hold for liquids, if their absorption is measured by 



