328 Prof. E. N. Horsford on Glycocoll, 



The latter uniting with sulphuric acid would give a compound 

 that might not be thrown down by baryta and which with the 

 ammonia, after the precipitation of oxalic acid would give 



C 2 H 2 0, S0 3 , NH 4 O. 



Upon heating the body with potash — dissolving in hydrochloric 

 acid and adding baryta, a copious precipitate followed, establish- 

 ing the presence of sulphuric acid. The small quantity prepared, 

 prevented a determination of the quantity of acid. This for- 

 mula requires 13-86 p. c. of carbon, 16-36 of nitrogen, and 681 

 p. c. of hydrogen. 



It is not considered as established but merely as indicating ap- 

 proximately the action of sulphuric acid. 



A concentrated solution of the crystals gave with baryta a 

 crystalline precipitate that redissolved in hydrochloric acid. 



With chlorid of calcium, upon the addition of ammo 

 crystalline precipitate was thrown down. 



Want of time as well as of substance, postponed the further 

 examination of this interesting body. 



, » 



Action of Chlorine* 



When 



jected to a current of chlorine gas, the latter is rapidly absorbed, 

 and an instantaneous and copious evolution of carbonic acid 

 succeeds. Heat and sunlight both facilitate the action. A con- 

 venient method was found in connecting with a stream of dry 

 chlorine gas, a Liebig's potash apparatus, filled, as far as is usual 

 for a combustion, with a solution of glycocoll. It is only neces- 

 sary that the rapidity of evolution equal that of absorption. 



At the end of the third day the process was interrupted, and 

 the liquid evaporated to a syrup consistence. A drop of this 

 syrup yielded, upon the addition of ammonia, a white crystalline 

 precipitate with both chlorids of barium and calcium. 



Upon saturating with baryta, filtering and washing with abso- 

 lute alcohol, it was found that but a small fraction of the glyco- 



r%r\\ Un J V. 1 . i 



coll had been oxydated. 



and exposed to 



ii was, again returned to the potash apparatus, and expose ~ 

 a slow but uninterrupted stream of chlorine gas for a week. A« 



trio r>r>n/»li-io;^»^ nf iU:„ ■ i .i ... i ii „Vioiicrpd. 



period 



changed 



•— «• pwiv/u meie was sua ^lyuuuun u"« 



Onlorid of barium gave the precipitate from the concentr 

 lution after neutralization with ammonia. This precipitate redis- 

 solved in water. It also redissolved in nitric acid, from which ■ 

 was not thrown down by ammonia. 



JtJLtiV dUl 5? 0hse l ve ™y action of chlorine upon glycocoll ; a circumstance 

 uon not h p0SS,b '^ l ° lhe P. r ! se "ce of an impurity rich ^hydrogen, or to the ac 



turn not being continued sufficiently long. 



