222 DR T. ANDERSON ON THE PRODUCTS OF THE 
and volatile oils. It dissolves with great facility in the acids, but even when added 
in large excess, it does not neutralize them. It precipitates alumina, chromium, 
zine, and peroxide of iron from their solutions, but gives no precipitate with baryta, 
lime, magnesia, manganese, or nickel. It throws down oxide of lead from the 
nitrate, but not from the acetate, a remarkable peculiarity, which it shares with 
methylamine and ethylamine. With corrosive sublimate, it forms a double salt, 
but from salts of the suboxide of mercury, it throws down the oxide. Its odour 
is strong, aromatic, and far from unpleasant. Its specific gravity is 0-921, and it 
boils at 354°. The following results were obtained by analysis,— 
4-075 grains of collidine gave 
I. ¢ 11-800 ... carbonic acid, and 
3450 .,. water. 
4-079 grains of collidine, gave 
II.{ 11800... ~—_ carbonic acid, and 
3'393 ° ,... water. 
4124 grains of collidine, gave 
TII.; 11.980 ... carbonic acid, and 
3560 ... water. 
Experiment. Calculation. 
ites a > 
I. II. Il. 
Carbon, ‘ : 78:97 78:89 79:22 79-33 Cre 96 
Hydrogen, . - 9-40 9-24 9-58 9:09 pe 11 
Nitrogen, . 5 11-63 11:87 11:20 11:58 N 14 
100:00 100-00 100-00 100-00 121 
These numbers correspond with the formula C,, H,, N. Collidine forms, there- 
fore, another member of the picoline series, and corresponds in constitution 
with the base described by Canours, under the name of zylidine, in the aniline 
series; with which, however, it is isomeric only, and not identical, its properties 
being different in all respects. 
The salts of collidine are, for the most part, highly soluble and deliquescent. 
When evaporated, they form uncrystallizable gummy masses, some of which, on 
standing, show traces of crystallization. They are soluble also in alcohol, but 
not in ether. The only highly crystallizable compounds, are the mercury and 
platinum double salts. 
The mercury double salt is thrown down in the form of a curdy white preci- 
pitate, on the addition of a solution of corrosive sublimate to a solution of the 
hydrochlorate of collidine. It dissolves in boiling spirit, and is deposited, on cool- 
ing, in needles. It could not be obtained of definite composition. 
Platinochloride of Collidine—is obtained, when strong solutions of hydrochlo- 
rate of collidine and bichloride of platinum are mixed. It is slowly deposited in 
the form of orange-yellow prisms or needles, according to the degree of concen- 
tration of the fluids. It is readily soluble in water, but insoluble in alcohol and 
ether. Its analysis gave the following results,— 
