Materia medica, pharmacy, pharmacology and therapeutics / by W. Hale White.

  • Hale-White, William, Sir, 1857-1949.
Date:
1903
Catalogue details

Licence: In copyright

Credit: Materia medica, pharmacy, pharmacology and therapeutics / by W. Hale White. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    depressing action of potassium salts, they should be used with care in persons suffering from heart disease. Skin.—Both these salts may be used in slight pyrexia, such as that of a common cold, on account of their diaphoretic properties. Lungs.—These salts, like the carbonates and bi- carbonates, are mild saline expectorants, especially suitable for cases of bronchitis, with viscid, scanty expectoration, as they increase the secretion and lessen the viscidity. The iodide of potassium is, however, still more eflEicacious. 7. Potas$ii Sulphas. — Potassium Sulphate. Source.—Occurs native. Also obtained by the interaction of sulphuric acid and potassium chloride or certain other potassium salts. Chabacters.—Hard, colourless, rhombic prisms, termi- nated by six-sided pyramids. Taste, disagreeable. Sohi- bility 1 in 10 of water. Impurities.—Other sulphates and chlorides. Dose, 10 to 40 gv. It is contained in Pilula Colocynthidis Composita, 1 in 24, Pilula Colocynthidis etHyoscyami, 1 in 32, Pilula Ipecacuanhte cum Scilla, 1 in 2, Pulvis Ipecacuanhas Compositus, 8 in 10 (in the last two merely as a diluent). 8. Potassii Tartras. — Potassium Tartrate. (CH0H)2(C00K)„H,0. Source.—Neutralize a hot solution of potassium carbon- ate with acid potassium tartrate. 2KHC^H^0,i + K.COj = 2K,C^H,0„ + H.,0 + CO,. Chabacters.— Small, colourless, deliquescent prisms. Solubility.—10 in 8 of water. Impurities.—Acid tartrate and carbonate of potassium. Dos«, 20 to 60 gv. (diuretic); 2 to 4 dr. (purgative). 9. Potassii Tartras Acidus.—Acid Potassium Tartrate. (CH0H)2C00H.C00K. S!/now2/??is.-Bitartrate of potash ; Cream of tartar. Source.—Obtained by purification from crude tartar (argol) deposited on the sides of wine casks during the fermen- tation of grape juice.