OF THALLIUM, INDIUM, AND TIN 



ELECTROMOTIVE FORCE BETWEEN INDIUM AMALGAMS. 



Amalgams of indium were now studied in the same manner. They had 

 been prepared in the fashion described on page 9, and all the dilutions 

 were made inside the cell in an atmosphere of hydrogen with the same 

 precautions as in the case of thallium. Density corrections were applied 

 in the calculation of the concentration ratio. 



Three parent amalgams, Ei, Fi, and Gi, were prepared. The first, Ei, 

 contained 3.0014 grams of indium dissolved in 152.783 grams of mercury; 

 the second, Fi, 23.276 grams of this amalgam with 116.472 grams more of 

 mercury, and the third, Gi, contained 40.812 grams of Fi with 72.926 

 grams more of mercury. 



These " parent " amalgams were diluted as follows : 



The measurements of electromotive force, and the theoretical values 

 calculated from the concentration law, are given in table 3. 



TABLE 3. Electrical Measurements of Indium Amalgams. 



