of Organic Elementary Analysis. 165 
of the combustion, it was found that all but £inch at the for- 
ward end of the column of mixed asbestos and vase of copper 
showing that with ee mee — of copper mper- 
ature higher than 250°, even as high as 350°, is more fsa 
for the absorption of the chlorine. The fo lowing results of the 
analysis, tp, are equally accurate with those of the pre- 
ceding analysi 
01669 gram of chlorid of amyl rie 0: — of carbonie acid, 
0°1612 of water, 0°22138 of chlorid of silve 
Calculated. Found. 
Carbon ©,, 60  56:3910 56-489 
Hydrogen H,, 11 10°3383 10°785 
Chlorine Cl 35°4 33°2707 32°732 
100 100-006 
Analysis 3—Under the impression that an oxyd of copper 
which had been less strongly ignited might be effectual to sina 
the chlorine at a lower temperature, I employed i in this and the 
two following analyses a preparation of brown oxyd of copper, 
— by precipitation with potash and ignition over an ordi- 
'y gas flame. In this analysis the temperature of the air-bath 
paused from 150° to 158°. ~ e space occupied by the asbestos 
mixture was four siahies in length, and contained three grams 
of the oxyd. Although the results of the analysis indicate that 
the temperature of the air-bath was too low, they also show, by 
comparison with the results obtained in = ogee with strongly 
ignited oxyd at about the same temperature of the air-bath (see 
p. 163), that the brown oxyd is decidedly scorers in respect to 
the temperature required. This was also shown by the appear- 
ance of the oxyd after combustion,—the newly formed chlori 
Peng scabies in the case of the brown oxyd, toa much shorter 
ace 
Results of the Analysis.—0°1640 gram of chlorid of amyl gave 
0°3504 of carbonic acid, 0°1562 of water, and 0°1884 of chlorid 
of ine 
Calculated. Found. 
Carbon C,, 60  56°3910 58-268 
Hydrogen H,, 11 10°3383 10°582 
Chlorine Cl 35°4 33-2707 28°360 
100. 97°210 
Analysis 4.—Used the same preparation of oxyd of copper as 
in analysis 8, viz., the brown oxyd. Temperature of the air- 
Scr.—SzconpD ou. XLH, No. 125. 
