Materia medica and pharmacy : for the use of medical and pharmaceutical students preparing for examination / by W. Handsel Griffiths ; edited, and in part written, by George F. Duffey.

Date:
1879
Catalogue details

Licence: Public Domain Mark

Credit: Materia medica and pharmacy : for the use of medical and pharmaceutical students preparing for examination / by W. Handsel Griffiths ; edited, and in part written, by George F. Duffey. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    colourless. When burned at a high temperature, with a little red oxide of mercury and free access of air, it leaves only a slight residue, and is thus distinguished from vegetable charcoal and from bone black. Carbo Ligni. Wood charred by exposure to a red heat without access of air. Wood yields from 17 to 23 per cent, of charcoal. It is met with in black, brittle, porous masses, odourless and tasteless, very light, and retaining the shape and texture of the wood from which it was obtained. When burned at a high temperature with free access of air, it leaves no more than 2 per cent, of ash. It absorbs gases and odours, and decolourises, but not so energetically as animal char- coal. It is insoluble in water, a bad conductor of heat, but a good one of electricity. SULPHTJE. [S=32] B. P. Preps. Strength Dose Action and Use Sulphur Sublimatum Sublimed Sulphur, Flowers of Sulphur Confectio Sul- phuris Sulphur PrcB- cipitatum Unguentum Sulphuris 4 pts. in 10 1 pt. in 5 20 to 60 grs. 1 to 2 drms. 20 to 60 grs. In small doses, stimulant to skin and mucous mem- branes. In large doses, laxative. Given in chronic cutaneous diseases, chronic bronchitis, mercurial ptyal- ism, &c. Externally in scabies and vegetable para- sitic diseases. Used in making Emplastrum Am- moniaci cum Hydrargyro, and Empl. HydrargyrL SULPHURIS lODIDUM Iodide of Sulphur Unguentitm Sulphuris lodidi 30grs.toloz. The ointment is used as an alterative, resolvent, and parasiticide. Sulphur Sublimatum. Sulphur prepared from crude or rough sulphur by sublimation. It may also be obtained from metallic sulphides; but it is then liable to contain impurities, as sulphide of arsenic. It is a slightly gritty powder of a fine greenish-yellow colour, without taste, and without odour unless heated; sp.gr. 1-98; burns in open vessels with a blue flame and the evolution of sulphurous acid. Insoluble in water, but soluble in hot oil of turpentine, in bisulphide of carbon, and to a slight extent in oils. It is entirely volatihsed by heat, showing absence of fixed impurities, and does not redden moistened litmus paper, showing that it is not oxidised. Solution of ammonia, agitated with it, and filtered, does not on evaporation leave any residue, showing freedom from orpiment (AsgSa).
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