90 C. A. Joy on Glucinum and its Compounds. 
rial, as a portion of the glucina ga in solution with the — 
alumina, and where iron was present, I found that considerable 
quantities were dissolved by the scat notwithstanding every 
erve 
4, By sulphurous a acid. —This method of Berthier,’ founded 7 
not succeed, as variable quantities of the sulphite of elu 4 
were always Fem down with the alumina salt. Thes 
of ammonia was substituted for the sulphurous acid gas, but Ro 
result was the same. My observations confirmed the experience 
of Weeren” and Bottinger. 4 
5. fy carbonate of baryta. —According to H. Rose,” car rbonate 
ta does not precipitate glucina from cold solutions, while 
ania under the same circumstances is precipitated. I foun 
however, in confirmation of the acai ns of Weeren,™ that 
both glucina and alumina were precipitated. 
6. By hyposulphite of soda.—C mrt : method for the sepa 
ration of alumina and iron was applied to the separation of Ju 4 
% 
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Wei hed portions of the nitrates of i and glucina were 
heated together to 200° C., and afterwards treated with water 
It was found that the nitrate of glucina was decom the 
same as the nitrate of alumina—affording no meth for 4 
separation oe aps earths. 
neweres soda anges is aprornphsatert from a boiling 
solution of ae of soda, the as the oxyd of iron, 
method employed for the Scare on of alumina and iron from 
other bases, I found that the behavior of glucina was the sam@ 
as alumina, and consequently this method was also unayailing- 
9. By fusing with caustic Aiaards —Weeren™ says, if glucin® 
Rose, Handb. d. 
™ Koss pple *P ann. Oem. Pharm, i 9% 
