68 Prof. EZ. N. Horsford on Gilycocoll, 
Gilycocoll and Nitrate of Silver. 
Gl, AgO, NO,. 
If the filtrate from a chlorine determination of the hydrochlo- 
rate of glycocoll be evaporated to concentration, and set aside 
over sulphuric acid, in a little time tolerably regular crystals of 
the above salt may ‘be obtained. 
It may be procured by dissolving glycocoll in nitrate of silver : 
or by eget oxyd of silver in the solution of the nitrate of 
glycoc 
Upon melting, it explodes with violence. When exposed to 
moist air it eae aie though it remains unchanged over sul- 
phuric aci 
The salt dried over sulphuric acid, on combustion with chro- 
mate of lead :— 
I. 0-9300 grm. “i rr gave 0:3550 grm. carbonic acid 
and 0-1880 grm. wa 
IL. 0-7840 grm. of ‘the same gave 0:2950 grm. carbonic acid 
and 0°1560 grm. water. 
TI. 0-6469 grm. of the same gave 0-0258 grm. chlorid of silver. 
In per cent. ges 
qf. iil, 
Carbon, 10: u 10:26 
Hydrogen, 224 221 
Silver, 49: 83 
giving the formula «day thas 
20 Li, 
as the annexed estimates ait results of analysis will show: 
| henry. | Experiment. 
Carbon, - - Peer 10 16 10:18 
Hydrogen, . - - 1-69 
2 a 11-86 . 
xygen, 4 . . 26:76 Ak 
Ox. silver, Ree 49-53 a 
} Re TN 
Gilycocoll and Nitrate of Copper. 
Gl, HO, CuO, NO,, CuO, HO. 
This salt was analyzed by Boussingault, a nd may be consid- 
ered as a compound of hydrate of glycocoll mils nitrate of copper, 
united to cheat of oxyd of copper. 
1, HO + CuO NO,) + CuO, HO. 
ouiiar and Nitrate of Potash. 
O, N 
This salt forms readily from a solution of glycocoll in nitrate 
potash, upon the addition of absolute alcohol. No quantitative 
analysis of it was made. 'The above formula is derived from t 
analyses on page 373. 
