Companion to the latest edition of the British pharmacopoeia : comparing the strength of the various preparations with those of the United States and other foreign pharmacopoeias to which are added not official preparations and practical hints on prescribing / by Peter Squire.

  • Squire, Peter.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Companion to the latest edition of the British pharmacopoeia : comparing the strength of the various preparations with those of the United States and other foreign pharmacopoeias to which are added not official preparations and practical hints on prescribing / by Peter Squire. Source: Wellcome Collection.

    71/744 (page 27)
    the first 30 parts of distillate, and the subsequent distillate will be Arsenic free.— C.B., '84, 628. Tests.—Sp. g. 1-lGO. 114-8 grains by weight, diluted with |- oz. of Distilled Water, require for neutralisation lOUO grain-measures of the volumetric Solution of Soda. When volatilised by heat it should leave no residue. With Nitrate of Silver a curdy white precipitate is formed, insoluble in Nitric Acid, but soluble in excess of Ammonia. When diluted with four times its volume of Distilled Water, it gives no precipitate with Chloride of Barium, nor with Sulphuretted Hydrogen, and does not tarnish bright copper-foil when boiled with it—indicat- ing absence of Sulphuric Acid, heavy Metals, and Arsenic. If a drop or two of dilute Solution of Sulphate of Indigo be added to half an ounce of the Acid, the hitter should acquire a permanent blue tint (absence of Chlorine and Nitric Acid). For the detection of Sulphurous Acid, see under ACIDUM ACETICUM, page 7. 1 fl. dr. diluted to 1 oz. will dissolve 26, but not 28, grains of Carbonate of Mag- nesium.—Froctor. (Austr., 23-86 p. c., sp. g. M20 ; Belg., Port., and Span., sp. g. MSO ; Dutch, 25 p. c, sp. g. 1-126; Fr., 34-4 p. c, sp. g. 1-171 ; Dan., Gcr., Hung., Norw., Russ., SweJ. and Swiss, 25 p. c, sp. g. 1-124; Ital., 35-7 p. c, sp. g. 1-18; U.S. 31-9 p. c, sp. g. M63.) Medicinal Properties.—Given in a very diluted form, as a refri- gerant and tonic; applied with an equal quantity of Water to diph- theritic patches in the throat. Given with good results in chlorosis.—L.M.R. '81, 229. Incompatibles.—Salts of Silver and Lead, Tartar Emetic, Alkalies, and their Carbonates. Antidotes.—In cases of poisoning by Hydrochloric Acid, the antidotes are Chalk, Magnesia, Bicarbonate of Potassium, with AVhite of Egg, Carron Oil, or Soap-suds, followed by Enemata of Beef Tea and Braudy, with Tincture of Ox)ium to prevent collapse ; and Emollient Drinks. Used in the preparation of Acidum Nitro-hydrochloricum Dilutum, Apomorphinae Hydrochloras, Cocaina) Hydrochloras, Liquor Antimonii Chloridi, Liquor Arsenici Hydrochloricus, Liquor Eerri Perchloridi Eortior, Quiuinae Hydrochloras and Syrupus Eerri Subchloridi. Preparation. ACIDUM HYDROCHIiOmCUM DILUTUM. Hydrochloric Acid, 8 ; Distilled Water sufficient to make the mix- ture, when cooled to 80° F., measure 26^-; or 3060 grains by weight of Acid, and Distilled AVater sufficient to measure 20 oz. when cooled to 60° F. (15-5° C). Contains 10-58 per cent, of real Acid. Test.—Sp. g. 1-052. Six fluid drachms (345 grains by weight) re- quire for neutralisation 1000 grain-measures of the volumetric solution of Soda, indicating one molecular weight in grains (36^) of Hydro- chloric Acid, HCL Three and a third minims contain about 1 minim strong Acid. Dose.—10 to 30 minims with aromatic or bitter infusions; for childi-en, 1^ to 2