Some of the largest wholesale perfumers use five or six pounds of gum benzoin per annum, but none use the benzoic acid.
Take a small piece of the gum benzoin and boil it in spirits of wine till it becomes a rich tincture.
From gum benzoin, either alone or mixed with olibanum or styrax, thrown on hot cinders or a heated shovel.
Mohr usually obtains about an ounce and a half of benzoic acid from twelve ounces of gum benzoin by the first sublimation.
It is made of half a pint of the very best rectified spirits of wine, two drachms of shellac, and two drachms of gum benzoin.
It may, however, by skilful purification, be rendered quite equal to that obtained from gum benzoin.
Here is a piece of gum benzoin, the substance from which Friar's balsam is made.
balsamic resin obtained from a tree (Styrax benzoin) of Indonesia, 1560s (earlier as bengewine, 1550s), from Middle French benjoin (16c.), which comes via Spanish, Portuguese, or Italian from Arabic luban jawi "incense of Java" (actually Sumatra, with which the Arabs confused it), with lu probably mistaken in Romance languages for a definite article. The English form with -z- is perhaps from influence of Italian benzoi (Venetian, 1461).