A translation of the Pharmacopoeia of the Royal College of Physicians of London, MDCCCXXIV: with notes explaining the chemical decompositions / By Jonathan Pereira.

Date:
1824
Catalogue details

Licence: Public Domain Mark

Credit: A translation of the Pharmacopoeia of the Royal College of Physicians of London, MDCCCXXIV: with notes explaining the chemical decompositions / By Jonathan Pereira. Source: Wellcome Collection.

    37/188 (page 23)
    Preparations ^ Compounds. ACIDA. ACIDS. ACIDUM ACETICUM DILUTUM. DILUTED ACETIC ACID. Take of Vinegar, a gallon; Let the diluted acetic acid distil over, in a sand bath, from a glass retort, into a glass receiver kept cold; then the first pint being thrown away, keep the six succeeding distilled pints. In this process, the dilute acetic acid is separated from the mucilage, colouring matter, &c. contained in the vinegar. The lirst pint that comes over principally consisting of water, is directed to be thrown away. ACIDUM BENZOICUM. BENZOIC ACID. Take of Benzoin, a pound j Put the benzoin into a glass vessel, placed in a sand bath, and having applied a heat of 300^, and gi'adnally increased it, sublime until nothing more