DE. E. FEANKLAND’S EESEAECHES ON OEG-ANO-METALLIC BODIES. 
69 
Binitroethylate of Baryta. 
C 4 H 5 0,Ba. 
This salt is produced by adding caustic baryta in excess to a solution of dinitroethylate 
of zinc, carbonic acid being passed through the solution until the excess of baryta is pre- 
cipitated. It is then treated with sulphuretted hydrogen to remove a trace of oxide of 
zinc, which is still held in solution. After being heated to boiling for a few minutes, 
and then filtered, the solution is concentrated by evaporation, and finally dried down to 
a gummy mass, which does not crystallize on coohng. This is anhydrous dinitroethylate 
of baryda. It yielded the following analytical results : — 
I. -8228 grm., bmmt with chromate of lead, gave '4420 grm. carbonic acid and -2428 
grm. water. 
II. -3675 grm., treated with dilute sulphuric acid and ignited, gave -2737 grm. sul- 
phate of baryta. 
These numbers agree with the formula 
Q Hs O 4 Ba. 
Calculated. 
a . 
. . 24 
15-23 
H, . 
. . 5 
3-17 
N, . 
. . 28 
17-77 
Ba 
. . 68-59 
43-52 
0 , . 
. . 32 
20-31 
157-59 
100-00 
Found. 
14-65 
3-28 
43-82 
Dinitroethylate of baryta is uncrystallizable, very deliquescent, and very soluble in 
water. Its solution reacts perfectly neutral. 
Binitroethylic Ether. 
Several attempts were made to prepare this compound by the usual methods of etheri- 
fication, but with only very partial success. When crystalhzed, dinitroethylate of lime 
is distilled with sulphovinate of potash, alcohol comes over mixed with an ethereal 
liquid which dissolves in water, but separates again on the addition of chloride of cal- 
cium, in the form of oily drops of a peculiar ethereal odour. I only succeeded, however, 
in obtaining such minute quantities of this body as to preclude the possibility of fixing 
its composition. 
Dinitroethylate of Lime. 
O, Ca-f3HO. 
This salt is readily prepared by treating solution of dinitroethylate of zinc with excess 
of hydrate of lime, passing carbonic acid through the solution, and then heating to boil- 
ing for a few minutes. The filtered solution deposits, on evaporation, beautiful silky 
MDCCCLVII. L 
