394 



MR C. G. WILLIAMS RESEARCHES ON 



The hydriodate of amyl chinoline gave, in a 

 determination of the percentage of iodine, the fol- 

 lowing numbers. 



f 9*882 grains hydriodate amyl-chinoline gave 

 \ 7-086 ... iodide silver. 



Experiment. 



Carbon, 

 Hydrogen, 

 Nitrogen, 

 Iodine, 



38-75 



51-38 

 5-50 

 4-28 



38-84 



100-00 



Calculation. 

 C 28 



ILo 



N 

 I 



168 

 18 

 14 



127 



327 



The fluid from which the iodine had been preci- 

 pitated was treated with hydrochloric acid in excess, 

 the chloride of silver removed by filtration, and the 

 fluid evaporated to a moderate bulk, excess of bi- 

 chloride of platinum was then added, and the pre- 

 cipitated platinum salt washed, first with a little 

 water, and then with a mixture of alcohol and ether. The platinochloride of amyl- 

 chinoline is only sparingly soluble in water, it was dried at 212°, and burnt with 

 chromate of lead and copper turnings. 



6 - 756 grains of platino-chloride of amyl-chinoline, gave 

 10233 ... carbonic acid, and 

 2-813 ... water 



7*150 ... platinochloride of amyl-chinoline gave 

 1-733 ... platinum. 





Experiment. 

 41-31 





Calculation. 





Carbon, 



"41-43 



^28 



168 ^ 



Hydrogen, 



4-63 



4-44 



H 18 



18 



Nitrogen, 



• • ■ . 



3-45 



N 



14 



Chlorine, 





26-26 



Cl a 



106-5 



Platinum, 



24-24 



24-42 



Pt 



99 



100-00 



405-5 



Action of Chlorine on Chinoline. — According to Gerhardt,* chlorine converts 

 chinoline into a black resin, but my experiments show that it acts in a very dif- 

 ferent manner, if care be taken to prevent rise of temperature. On dropping 

 chinoline into a large glass vessel of the gas, and leaving it for twelve or fourteen 

 hours, a yellow oil is produced, which, on treatment with water, leaves a white 

 insoluble matter, which I have not yet had an opportunity of studying more in 

 detail. 



Action of Chloride of Acetyl on Chinoline. — Chloride of acetyl on being added 



Traite, troisieme partie, p. 150. 



