152 
MR. BRODIE ON CEROTIC ACID. 
I. 0’469gTm. of this salt gave r067 carbonic acid and 0'4315 water. 
II. 0‘4G63 grm. of this salt gave r0673 carbonic acid and 0‘4273 water, 
giving in 100 parts, — 
I. 
II. 
Carbon 
. 62*04 
62*43 
Hydrogen .... 
. 10*22 
10*18 
Oxygen and silver 
. 27-74 
27*39 
100*00 
100*00 
I. 0*6566 grm. of this salt gave 0*1413 grm. of silver. 
II. 0*6508 grm. of this salt gave 0*1388 grm. of silver. 
III. 0*6147 grm. of this salt gave 0*1292 grm. of silver. 
IV. 0*6641 grm. of another preparation gave 0*1396 grm. of silver. 
V. 0*665 grm. of the same preparation gave 0*1396 grm. of silver. 
These determinations correspond in 100 parts to — 
I. II. III. IV. V. 
Silver .... 21*52 21*33 21*02 21*02 20*99 
The above analyses agree with the formula C 54 H 53 O 3 , AgO. 
C 54 . 
Atomic weight. 
. . 324*0 
Calculated in 100 parts 
62-66 
H 53 . ■ 
, . 53*0 
10*25 
O 4 . . 
32*0 
6*19 
Ag . , 
00 
0 
20*90 
517-1 
100*00 
Cerotic Ether. 
The combination of this acid with the oxide of ethyle is readily obtained by dis- 
solving the acid in absolute alcohol, and passing hydrochloric acid gas through the 
solution. This substance has the appearance of a soft wax, and melts at 59°-60° C. 
I. 0*2628 grm. gave 0*765 carbonic acid and 0*3094 water. 
II. 0*2638 grm. gave 0*7695 carbonic acid and 0*3105 water, 
giving in 100 parts, — 
I. 
II. 
Carbon . . 
. . 79*38 
79*55 
Hydrogen 
. . 13*08 
13*08 
Oxygen . . 
. . 7*54 
7-37 
100*00 
100*00 
To obtain these numbers the action must be long continued. They correspond to 
the formula of the ether, Cjg 1^58 ^4 — C 54 H 53 03-j-C4 H 5 O. 
