Destructive Distillation of Amftiat SUyfdnces. 465 



^ill rather hot, and it immediately evolved a strong smell of the 

 base, which accounts for the loss of carbon obtained in the 

 experiment. 



I. 8-234 grs. of the platinochloride gave 6*486 carbonic acid 

 and 1*705 water. 



II. 5*396 grs. of the platinochloride gave 4*015 carbonic acid 

 and 1-091 water. iifniffooiroo 



8*138 grs. platinochloride gave 2*792 grs. platinunii^^l^ '^^'^l 00 • 

 '^^■4*956 ... ... 1*703 ... NjiiiiM Vj 



,??ffoiifiOitLtoe)'f :orfibo.i.Expermient. 



>fu>a-jini afit V- ■ ( ^ ^ 



,^,.Car)3^:^,..3, 21*48 20*29 



^,^;Hy(irogen,| ^^f^,,^^*^4,, 



,,„^Nitrogen^„^.|. .,,, 



'wi^hlorme^ ^1 , 



hi .!?t)Tf/tR'oqrn[o:t tfT^T6^f[) IP- b'mriiK' 100*00 285*2 ^^ 



!^!' The formula C^o H^ N, HCl, Pt CP agrees very closely with 

 these analyses ; and the salt is consequently that of a base 

 having the formula C^^ H^ N, which forms a term of the picoline 

 series. I have not as yet directed further attention to this base, 

 as the phsenomena observed in the examination of the next base 

 served to show that, notwithstanding the correspondence of the 

 salt with theory, much difficulty would be experienced in ob- 

 taining the base itself in a state of purity. 



tafixbi'i?{q to om&ff aiii mi r^f:^:^^ ^^^'^d m^di io ig-iii odT I 



IfJ In the fraction boiling about 310°, a base occurs which 

 possesses precisely the constitution of toluidine, and to which I 

 give the name of Lutidine. When in the distillation of the 

 mixed bases the temperature rises to about 305° to 310°, more 

 distinct indications of a fixed boiling-point are obtained than at 

 any other temperature, and the base which distils presents 

 sufficiently distinct characters from those obtained at lower 

 points. The product is now much less soluble in water; 

 when dropped into a small quantity of that fluid it floats on the 

 surface, and is only slowly dissolved on agitation. It possesses 

 the remarkable property of immediately separating from its 

 solution on the application of a gentle heat, and collecting on 

 the surface in the form of an oily layer which dissolves again as 

 the temperature falls. Its smell is less pungent and more 

 aromatic than that of picoline, and it is also more oily in its 

 characters. It unites with the acids and forms salts, all of which 

 are highly soluble. 



