226 



DR T. ANDERSON ON THE PRODUCTS OF THE 





Experiment. 





Calculation. 







I. II. 



in. 









Carbon, 



29-15 



. . . 



29-33 



C ,r 



96 



Hydrogen, 



Nitrogen, 



Chlorine, 



3-76 



... 



3-66 



4-31 



32-54 



H 12 



N 

 Cl„ 



12 



14 



106-5 



Platinum, 



29-75 29-78 



29-91 



30-16 



Pt 



98-7 



100-00 



327-2 



Aurocliloride of Ethylopicoline. — This compound is readily formed, by adding a 

 solution of chloride of gold to the nitrate, with excess of Irydrochloric acid, ob- 

 tained from the iodide, in the manner employed for the production of the plati- 

 num salt. It is slowly deposited in the form of golden-yellow flattened prisms 

 of great beauty. It is sparingly soluble in cold water, readily in hot, and is de- 

 posited unchanged on cooling. It is insoluble in alcohol and ether. Ammonia 

 converts it into a cinnamon-brown powder, and it is instantly blackened on the 

 addition of potash to its hot solution. The specimen analysed, was dried at 212°, 

 and burnt with chromate of lead. 



{6 745 grains of aurochloridc of ethylopicoline gave 

 5-093 ••• carbonic acid, and 

 1-675 ... water. 



( 5-300 grains of aurocliloride of ethylopicoline gave 

 [ 2-265 ... gold. 





Experiment. 



20-59 





Calculation. 





Cai-bon, . 



20-83 



C 16 



96 



Hydrogen, 



2-75 



2-60 



H 12 



12 



Nitrogen, 





3-06 



N 



14 



Chlorine, 



. 



30-82 



Cl 4 



142 



Gold, . 



42-73 



42-69 



Au 



196-6 



100-00 



460-6 



Corresponding with the formula C 16 H l2 N CI + Au Cl 3 . 



It has been already mentioned that though ethylopicoline is fixed and inodor- 

 ous, its iodide cannot be distilled with potash, or the base itself boiled or even 

 evaporated in vacuo, without undergoing a decomposition, attended with the evo- 

 lution of volatile base. In the latter case the decomposition is slow, and even after 

 the ebullition has been continued for some hours the odour is given off with undi- 

 minished intensity, till by long-continued boiling it at length becomes extremely 

 faint although it does not altogether disappear. When the iodide is boiled with pot- 

 ash, the change is more rapid, and after three or four hours' boiling a considerable 

 quantity of base is found in the receiver. The product has a pungent and putrid 

 odour, fumes strongly with hydrochloric acid, and forms with it a salt entirely 



