The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley.

  • Beasley, Henry.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    of a sand-bath. D. By a similar process from 87 parts of sul- phuric acid, 100 of dried salt, and 124 of water. Sp. gr. of each, 1-160. Acidum Hydrochloricum Purum. [Ac. Muriaticum purum, E.] Take equal weights of pure muriate of soda (see Sodae Murias Purum) well dried, sulphuric acid, and water. Put the salt into a glass retort, and add the sulphuric acid, previously mixed with a third of the water, and cooled. Fit on a receiver containing the rest of the water. Distil with a gentle heat as long as any acid passes over, keeping the receiver constantly cool. Density, 1-170. [Commercial hydrochloric acid sometimes contains arsenic, from which it may be freed by redistilling it with pieces of bright copper.] Acidum Hydrochloricum Dilutum. L. Acidum muriaticum dilutum E. Hydrochloric acid f^iv, distilled water f^xij, mix. The D. acid is much stronger, f ^x of acid to f ^xj of water. Acidum Hydrocyanicum Dilutum. L. Diluted or medicinal Prussic acid. Sulphuric acid ^iss, water f ^iv j mix, and when cool, put them into a tubulated retort, and add ferro-cyanide of potassium ^ij dissolved in f ^x of water. Pour f ^viij of dis- tilled water into the receiver; and having connected the retort (and adopter), distil f ^vj with a gentle heat, keeping the re- ceiver constantly cool. To the product add f ^vj of distilled water, or q. s. that 12-7 grains of nitrate of silver, dissolved in water, may be accurately saturated by 100 grains of the diluted acid; indicating 2 per cent, of real hydrocyanic acid. Or it may be more quickly made from 48 \ grains of cyanide of silver, added to a mixture of 39 \ grains of hydrochloric acid and f ^j of distilled water, and shaken together in a stopped phial; de- canting the clear liquid when the sediment has subsided. [Dose, from 2 to 5 v% .] Acidum Hydrocyanicum. E. Ferro-cyanide of potassium |iij, sulphuric acid f ^ij, water f ^xvj. Dissolve the salt in f ^xj of water, add the acid mixed with f^v of water, and distil f^xiv. Add distilled water to the product to make up the measure exactly f Jjxvj. [Dose n£ j to iij.] Acidum Prussicum. D. Cyanuret (bicyanide) of mercury ^j, muriatic acid f 3vij, water f ^viij. From a glass retort, distil into a cooled receiver f^viij; to be kept in a well-stopped bottle, in a cool, dark place. This last direction should be ob- served with all the varieties of this acid. The D. acid contains 2*