Thomson's conspectus adapted to the British Pharmacopoeia of 1885 / edited by Nestor Tirard.
- Anthony Todd Thomson
- Date:
- 1887
Licence: Public Domain Mark
Credit: Thomson's conspectus adapted to the British Pharmacopoeia of 1885 / edited by Nestor Tirard. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
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![Off. Prep.—Acidum HydrochloHcum Dilutum. Acidum Nitro-hydrochlo- ricum Dilutum. Liquor Antimonii Chloridi. Liquor Arsenici Hydro- chloricus. ACIDUM HYDROCHLORICUM DILUTUM. Diluted Hydrochloric Acid. (Acidi Iiydrochlo7'icif{.xmc.Y\i].; Aquce DestiUafce q.s. Dilute the acid with 16oz. of water, then add more water; at 60° F. (150,5 C.) the mixture should measure 26^ fl. oz.) Test.—Sp. gr. 1*052 ; 845 grs. by weight (fl.dr.vj.) are neutralised by 1000 grain-measures of the volumetric solution of soda, correspond- ing to 10*58 per cent, of real acid. Dose.—Min.x. to min.xxx. Use.—The same as the strong acid. Off. Prep.—Used in preparation of Liq. Morphince Hydrochloratis and Liq. Strychninee Hydrochloratis. ACIDUM HYDROCYANICUM DILUTUM. Diluted Hydrocyanic Acid. (Potassii Fenocyanidiunc.2£ ; AcidiSulph. fl.unc.j.; Aq.Dest. fl.unc.xxx. vel q.s.) Comp.—Anhydrous hydrocyanic acid dissolved with water and con- stituting 2 per cent, by weight of the so'ution. Chemical formula, HCN. Prop.—Colourless, transparent, with a peculiar odour; taste sweetish and bland at first, afterwards pungent and acrimonious ; very vola- tile ; decomposed by a high temperature and light, gives a slight and transient redness to litmus paper. Sp. gr. *997. Opei\—Sedative. Use.—In spasmodic coughs; asthma and w*hooping cough; hiccough, and in allaying the irritability of the stomach in dyspepsia. As a local application, properly diluted, it is useful in abating the itching in impetigo and pruriginous affections. Dose.—Min.ij. gradually increased to min.viij. in a glassful of wratcr, almond emulsion, or infusion of cinchona. When an overdose has been taken, the effects are best counteracted by ammonia, chlorine, brandy, and the cold affusion. Incomp.—Metallic oxides, chlorine. Tests.—100 grains treated with nitrate of silver should precipitate gr.x. of cyanide of silver; if iodo-cyanide of potassium and mercury redden the acid, it contains some other acid. Chloride of barium causes no precipitate in the pure acid. 270 grs. rendered alkaline bjT soda require 1000 grain-measures of the volumetric solution of nitrate of silver to be added before a permanent precipitate begins to form, which corresponds to 2 per cent, of the real acid. Off. Prep.— Vapor Acidi Hydrocyanici. Tinctura Chloroformi et Mor- phince. ACIDUM LACTICUM. Lactic Acid. Produced by action of a ferment on a solution of sugar. Comp.—Lactic acid, HC3ETS03, with about 25 per cent, of water. Prop.—Colourless, syrupy liquid, taste and reaction acid. Sp. gr. 1*21. Readily miscible with water, alcohol, and ether, nearly insolub’e in chloroform. It vaporises when heated, the gases evolved ignite, the residue chars and finally almost entirely disappears. 120 grs. are neutralised by 1000 grain-measures of volumetric solution of soda. Oper.—Similar to that of hydrochloric acid. Use.—As spray or lotion in diphtheria; also in dyspepsia, vesical catarrh, and diabetes.](https://iiif.wellcomecollection.org/image/b24907819_0035.jp2/full/800%2C/0/default.jpg)
