CHLORINE AND ORGANIC ALKALIES. 
167 
Action of Chlorine upon Quinia. 
Quinia, in fine powder, was suspended in distilled water, 
and a current of chlorine passed through the mixture; the 
quinia was quickly dissolved, communicating to the liquor a 
color at first rose, then violet red, and finally deep red. On 
continuing the disengagement of the chlorine, the color di- 
minished in intensity,a reddish viscous matter was precipitated, 
which adhered to the sides of the vessel, but by exposure to 
the air became friable. To purify this substance from the 
free hydrochloric acid which it contained, interposed between 
its particles, I boiled it several times in water. This sub- 
stance I will examine presently. 
The liquor from which the viscous matter had been sepa- 
rated, was strongly acid; saturated with ammonia, yellow 
flocculi were separated; these, by desiccation, became brown, 
presenting a matter very similar to that which had separated 
spontaneously. Lest it should retain some quinia, this mat- 
ter was dissolved in water acidulated with sulphuric acid ; 
it dissolved by the aid of heat, but was deposited on cooling. 
If it contained any quinia, this would remain dissolved in the 
acid liquor. 
Finally, the ammoniated liquor, from which the brown resi- 
nous matter had been obtained, evaporated by a salt water bath, 
yielded much hydrochlorate of ammonia colored red by the 
same matter, a part of which resinous substance separated on 
re-dissolving the salt. 
Sulphate of quinia in fine powder, suspended in water, was 
submitted to the action of chlorine; it soon dissolved. The 
liquor became yellow, red, and, finally, green; at this time 
grayish flocculi began to precipitate; ammonia poured into 
the liquid produced but a very slight precipitate. In another 
experiment, which had been carried on to the production of 
the red color, ammonia gave an abundant precipitate, having 
all the characters of the resinoid substance obtained by treat- 
ing quinia itself with chlorine. It appears from this, that the 
