ON SOME CHEMICAL AGENCIES OF ELECTRICITT. 3Q . 



sfrua; and the less concentrated the solution, the greater Pawa ? eofva - 



nous suostan- 

 seemed to be the facility of transmission. ces through 



I tried in this wav muriate of lime with sulphuric acid, attracting che- 



1 mural mixtures 



nitrate of potash with muriatic acid, sulphate of soda with bymeansof 

 muriatic acid, and muriate of magnesia with sulphuric acid; electncity. 

 I employed the power of 150 ; and in less than 48 hours, I 

 gained in all these cases decided results; and magnesia came 

 over like the rest. 



Strontites and barytes passed, like the other alkaline sub- 

 stances, readily through muriatic and nitric acids; and, vice 

 versa 1 , these acids passed with facility through aqueous solu- 

 tions of barytes and strontites; but in experiments in which 

 it was attempted to pass sulphuric acid through the same men- 

 strua, or to pass barytes or strontites through this acid, the 

 results were very different. 



When solution of sulphate of potash was in the negative 

 part of the circuit, distilled water in the positive part, and 

 saturated solution of barytes ia the middle, no sensible quan- 

 tity of sulphuric acid existed in the distilled water after 30 

 hours, the power of 150 being used ; after Jour days, sulphu- ; 



ric acid appeared, but the quantity was extremely minute; 

 much sulphate of barytes had formed in the intermediate 

 vessel; the solution of barytes was so weak, as barely to tinge 

 litmus; and a thick film of carbonate of barytes had formed 

 on the surface of the fluid. With solution of strontites the 

 result was very analogous, but the sulphuric acid was sensible [ 

 in three days. 



When solution of muriate of barytes was made positive by 

 the power of 150, concentrated sulphuric acid intermediate, 

 and distilled water negative: no barytes appeared in the 

 distilled water, when the experiment had been carried on lor 

 four days; but much oxi muriatic acid had formed in the 

 positive vessel, and much sulphate of barytes had been de- 

 posited in the sulphuric acid. 



Such of the metallic oxides as were made subjects of expe- 

 riment passed through acid solutions from the positive to the 

 negative side, but the effect was much longer in taking place 

 than in the instances of the transition of alkaline matter. 

 When solution of green sulphate of iron was made positive, 



solution 



