Medicines, their uses and mode of administration : including a complete conspectus of the three British pharmacopoeias, an account of all the new remedies, and an appendix of formulae / by J. Moore Neligan.
- John Neligan
- Date:
- 1849
Licence: Public Domain Mark
Credit: Medicines, their uses and mode of administration : including a complete conspectus of the three British pharmacopoeias, an account of all the new remedies, and an appendix of formulae / by J. Moore Neligan. Source: Wellcome Collection.
Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)
128/504
![in halves; inodorous, with a saline, somewhat bitter taste. Sp. gr. 1-757. Chemical Properties.—It is composed of 1 eq. of soda, 1 of potassa, 2 of tartaric acid, and 10 of water, (KO, Na O, 2 (C^O1) + 10 HO). In very dry air it effloresces slightly ; exposed to a moderate heat it fuses in its water of crystallization ; by a strong heat it is de- composed, and converted into a mixture of charcoal and the carbonates of soda and potash. It dissolves in five parts of cold, and one of boiling water. As this salt is generally sold in crystals, it is not liable to adultera- tion. Therapeutical Effects.—A mild cooling laxative, not so active as most of the other saline cathartics, than which also its taste is less disagreeable ; it is seldom prescribed alone, but is in very general use as the active ingredient in the commonly called Seidlitz (Seignettes ?) powders. Dose and Mode of Administration.—5ij- to 3vj. or %i. dissolved in a large quantity of water. Seidlitz powders consist of 3ij- of tar- trate of soda and potash, and 9ij- of bicarbonate of soda, reduced to powder and mixed, contained in a blue paper, and 3ss. of powdered tar- taric acid in a white paper ; they are taken, dissolved in from half a pint to a pint of water, while the liquid is in a state of effervescence. They form an agreeable and mild aperient. Incompatibles.—Most acids and acidulous salts ; lime water; the salts of lime ; and the acetates of lead. Sod.k sulphas, [U. S.] D. L. E. Sulphate of Soda. Glauber's salts. Preparation.—Dub.— 1' Dissolve the salt which remains after the distilla- tion of muriatic acid in a sufficiency of boiling water; set aside the filtered liquor after due evaporation, that as it cools crystals may form. Lond.— Take of the salt which remains at'ier the distillation of hydrochloric acid, Ibij.: boiling water, Oij. ; carbonate of soda, a sufficiency; dissolve the salt in the water, then add gradually sufficient carbonate of soda to neutralize the acid; boil down till a pellicle appears, and set aside the strained solution that crystals may be formed ; pour off the liquor and dry them. Edin.— Take of the salt which remains after making pure muriatic acid, Iftij. ; boiling water, Oiij. ; white marble, in powder, a sufficiency; dissolve the salt in the water, add the marble so long as effervescence takes place, boil the liquid, and when neutral, filter it; wash the insoluble matter with boiling water, adding the water to the original liquid ; concentrate till a pellicle begins to form, and then let the liquid cool and crystallize. Physical Properties.—A solid, white salt, crystallized either in small acicular crystals, or in long prisms the sides of which are often channeled ; inodorous ; with a cooling, saline, very bitter taste. Sp. gr. 2246. Chemical Properties.—It is composed of 1 eq. of soda, 1 of acid, and 10 of water, (Na O. SO? + 10 HO). By exposure to the air it effloresces rapidly, loses all its water of crystallization, and a white powder is left. Heated it fuses, but at the temperature of 210° it be- comes a white solid, which is again liquefied at a red heat, but is not decomposed. Sulphate of soda is soluble in three parts of water at 60°, and in all proportions in boiling water. It is insoluble in alcohol.](https://iiif.wellcomecollection.org/image/b21143602_0128.jp2/full/800%2C/0/default.jpg)
