The pharmacopoeia of the United States of America. 1820 / By the authority of the medical societies and colleges.

Date:
1820
Catalogue details

Licence: Public Domain Mark

Credit: The pharmacopoeia of the United States of America. 1820 / By the authority of the medical societies and colleges. Source: Wellcome Collection.

    69/284 page 63
    ACIDS. Ln e el DISTILLED VINEGAR. Take of Vinegar, eight pints. Distil in glass vessels, on a water bath. Throw away the first pint which comes over, and'preserve the next six pints. [em cnni] PURIFIED VINEGAR. Take of Vinegar, one gallon. Charcoal, fresh burnt and pulverized, one ounce. Mix the charcoal and vinegar ; then bring the liquor to a boil- ing heat, skim, strain through double flannel, and afterwards filter through paper, or suffer the impurities to subside. m ÓÓ as BENZOIC ACID. Take of Benzoin, any quantity. Liquify it in a wide necked retort, having a receiver fitted to it, but not luted, and sublime with a gentle heat. Remove the sublimed matter occasionally from the tube of the retort, lest it accumulate in too great quantity. Ifit be soiled with oil, wrap it between folds of blotting paper, then press it strongly, and repeat the sublimation.
    digitised image 1
    digitised image 2
    digitised image 3