Destructive Distillation of Animal Substances. 221 



6*435 grs. of sethylopyridine platinum salt gave 2*035 grs, 

 platinum. 



Experiment. Calculation, 

 ./s 



100*00 313*2 



Theform ula of the compound is C 14 H 10 N Cl + Pt CI 2 . 



The gold compound of rethylopyridine is obtained in fine 

 yellow plates of extreme beauty, sparingly soluble in cold water, 

 and readily decomposed in boiling, especially if an excess of 

 chloride of gold be present. They were not analysed. 



Action of Iodide of AEthyle on Collidine, 



Iodide of sethyle and collidine react upon one another in the 

 same manner as the bases already mentioned. An oily layer 

 separates on heating the mixture, which refuses to crystallize on 

 cooling. After removal from the tube in which the action was 

 effected, and separation from the excess of iodide of sethyle, the 

 fluid was allowed to stand for some time, but no crystals 

 appeared. It was then exposed to cold, in the hope of inducing 

 crystallization, but without success; and no better result followed 

 the attempts made by dissolving in the smallest possible quantity 

 of absolute alcohol, and adding sether. As the properties of the 

 compound did not appear promising, no further experiments 

 were made with it ; but it was converted into a platinum salt, 

 for the purpose of ascertaining whether the collidine had actually 

 combined with a3thyle. The process employed was the same as 

 that used for preparing the sethylopicoline salt. A sparingly 

 soluble and scarcely crystalline compound was obtained, the 

 platinum of which was determined by the following experiment: — 



5*855 grs. of the platinum salt gave 1*618 gr. platinum. 



10000 355-2 



This corresponds completely with the platinum salt of sethylo- 



