MR. BRODIE ON THE CHEMICAL NATURE OF A WAX FROM CHINA. 16/ 
The silver salt of the acid, prepared as in other cases, gave to analysis the follow- 
ing results ; — 
0'3625 grm. of the salt gave 0-827 COg and 0-332 HO, giving in 100 parts, — 
Carbon 62-21 
Hydrogen . . . . 10-18 
Oxygen and silver . 27‘61 
100-00 
I. 0-649 grm. of the salt gave 0-139 grm. of silver. 
II. 0-626 grm. of the same gave 0-13375 grm. of silver. 
These determinations correspond in parts per cent, to— 
I. 
Silver . , . 2T42 
The formula C 54 Hg 3 03 +AgO requires — 
Calculated. 
C 54 . . . 62-66 
H 53 . . . 10-25 
O 4 . . . 6-19 
Ag . . . 20-90 
100-00 
Ceroten. 
The portion of the distillate from which the soap has been separated by decanta- 
tion and by repeated washings and boiling out with water, consists chiefly of a solid 
hydrocarbon, one of those substances which have been comprehended and confounded 
under the general name of parafiin. It is mixed with a certain quantity of oil, from 
which it may be almost entirely separated by pressure in a press between folds of 
blotting-paper. If this substance be crystallized out of naphtha-alcohol and then 
out of ether, it may be obtained of a melting-point of 57°, 58° C. In this state it is 
highly crystalline on cooling, and presents the general appearance of the substance 
called paraffin. 
I. 0-2555 grm. gave 0-802 CO 2 and 0*331 HO. 
II. 0-2593 grm. gave 0-810 COg and 0-332 HO, 
which give in 100 parts, — 
I. 
II. 
Carbon 
. . . 85-60 
85-20 
Hydrogen 
. . . 14-39 
14-23 
99-99 
99-43 
These analyses correspond to 
the formula 
Calculated. 
Cg4 
. 324 
85-71 
H54 • . 
54 
14-28 
378 
99-99 
II. 
21-19 
