132 DR ANDERSON ON THE CONSTITUTION AND PROPERTIES OF PICOLINE, 



The crystals of this salt, after washing with alcohol and ether, and drying 

 at 212°, gave the following results of analysis : — 



10-032 grains of chloride of platinum and picoline gave 

 8-862 . . . carbonic acid, and 

 2-760 ••• water. 



The determination of the platinum, as formerly mentioned, gave in two dif- 

 ferent trials 32-544 and 32-522 per cent., the mean of which is 32-533. The 

 analysis corresponds with the formula Cio Hj N, H CI, Pt Cl^. 



3739-4 100-00 



Chloride of Picoline and Mercury. — When picoline is added to a concentrated 

 solution of bichloride of mercury, a white curdy precipitate immediately falls. 

 If, however, the solution be dilute, it is not precipitated for some time, and then 

 appeai-s in the form of radiated silky needles. It is sparingly soluble in cold 

 water, more readily in hot. It dissolves pretty abundantly in boiling alcohol, 

 and the solution, on cooling, deposits it, sometimes in prismatic, sometimes in 

 feathery crystals. It dissolves readily in dilute hydrochloric acid, with the for- 

 mation of a peculiar compound which I have not particularly examined. Boiled 

 with water it is decomposed, picoMne being evolved, and a white powder being 

 deposited. 



In the analysis of this compound I interposed, between the combustion tube 

 and the chloride of calcium apparatus, a small tube in which the mercury and 

 water were condensed, and at the conclusion of the process, a current of dry air, 

 heated to 212', was drawn through the tube, by means of which the water was 

 conveyed into the chloride of calcium apparatus. The salt was dried simply by 

 exposure to the air, as it loses picohne when heated ; when analysed it still smelt 

 of picoline, which accounts for the excess of carbon obtained. 



The following are the results of the analysis : — 



10.962 grains chloride of mercury and picoline gave 

 8-245 ... carbonic acid, 

 2-168 ... water. 



This corresponds to the formula C12 Hj N + Hg CL, which gives the following 

 results : — 



4583-1 100-00 



