GRANATINE. 331 
ART. LXIII.— GRANATINE. By M. Landerer. 
This chemist has obtained this substance by exhausting 
with several portions of alcohol, the rind of the unripe fruit of 
the pomegranate. The alcoholic extract is bitter and very as- 
tringent. This is dissolved in water, and albumen added to 
separate the tannin; the liquor is then filtered, evaporated, and 
treated with weak sulphuric acid, which forms a very bitter 
solution, from which caustic alkali throws down an abundant 
precipitate. This precipitate was dried, and subjected to di- 
lute hydrochloric acid, which dissolved a part; the remainder 
was then dissolved in alcohol, from which was obtained crys- 
tals partly stelliform, and partly mammelated, in the propor- 
tion of five grains from five pomegranates. 
This substance, heated in a platina crucible, burnt with the 
odor of burnt bread, it dissolves in all the diluted acids; with 
concentrated nitric acid it becomes blood red, and gives rise 
to a substance of the nature of wax. 
We do not consider these details as sufficient to characterise 
perfectly this substance, and to assign the rank which it ought 
to hold. J. de F. 
Journ. de Chim. Med. 
