MR. BRODIE ON THE CHEMICAL NATURE OF A WAX FROM CHINA. 
169 
The formula C 34 1 ^,33 
34 I 01 I'equires 
C 
'54 
H 
Cl 
33 
‘21 
29-43 
2-99 
67-58 
100-00 
I substance was again analysed. 
. 0 4434 grm. of the substance gave 0-464 CO., and 0-115 HO. 
. 0-309 grm. of the substance gave 0-323 CO 2 and 0-08 HO 
which give in 100 parts, — ’ 
Carbon . . . 28-54 28-51 
Hydrogen . . . 2-79 2-88 
Chlorine . . . 68-67 68-61 
100-00 100-00 
“ s:.r..:s, I" “• - »■» 
The formula Cg 4 ^^32 requires 
^54 
H 
Cl 
32 
^22 
28-76 
2-84 
68-40 
100-00 
the ceroten, and leave no doubt as to the nature of the hydrocarbon. M Lmyy 
attempted to take the density of the vapour of paraffin from bees’-wax. He kZ 
however, that th.s could not be effected, as the substance was altered, in proce f 
conversmn mto vapour, with the formation of a small quantity of hydrocarbonis 
SiHr* It"baT' ‘he analysis showing no variation in con,: 
fh rn I a ^ reraarked by others that if bees’-wax be repeatedly distilled 
he solid hydrocarbon disappears from the distillate. These observations point to the 
croTenUself in toT"' ""h'f"" ‘-'*fo™ation of the 
ceroten use f into isomeric hydrocarbons. In fact, I found, if the ceroten be distilled 
and ■•edistilled in a closed tube of the form anneked, that by effecting 
the distillation m this manner under pressure, after about two distil 
anTears Th'*‘ U 
appeals. The experiment after about six distillations was put an end to bv the 
lurstmg of the heated end of the tube, when a large quantity of combustible vapour 
* Ann. de Chimie, Series III. vol. v. p 398 
MDCCCXLVIir. 
