Materia Medica And Therapeutics (volume 2, V. 2) by Charles Douglas Fergusson Phillips

Materia Medica And Therapeutics (volume 2, V. 2)

byCharles Douglas Fergusson Phillips

Paperback | February 3, 2012

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882. Excerpt: ... Preparation And Dose.--Acidum phosphoricum dilutum: dose, 10 to 30 min. freely diluted. preparations, U. S. P.--Acidum phosphoricum dilutum, sp. gr. 1.056. Acidum phosphoricum glaciale--used in preparations. ACIDUM SULPHUEICUM-SULPHUEIC ACID--OIL OF VITKIOL, H,SO"=98. This occurs native in the water near volcanoes, as in Java, and in the "Sour Springs," in the town of Byron, Genesee County, N. Y. It is found in combination in twenty-two natural sulphates, also with anrmdnium in rain-water, near towns. It contains 79 per cent. of anhydrous sulphuric acid, S0a. There are two other forms of the same acid, the acidum sulphuricum dilutum, and the acidum sulphuricum aromaticum, which are weaker by one-seventh than the first-mentioned. Preparation.--By passing sulphurous acid gas (sulphurous anhydride) into leaden chambers, and bringing it there into contact with steam and nitrous fumes (nitrous anhydride); from the latter it absorbs an atom of oxygen, becoming sulphuric acid (anhydrous), and this combines with water to form a dilute sulphuric acid, which is afterward concentrated up to a sp. gr. of 1.843; a small quantity of nitric oxide gas will act as a carrier of oxygen from the atmosphere to a large quantity of sulphurous acid. In chemical formulae the main reaction may be represented as follows:--SO, + H,0 + N,Oa=HaS04+ 2NO. Characters And Tests.--The pure acid is an oily-looking, colorless liquid, but the commercial acid is often dark-colored from contained fragments of organic matter, which are charred by the acid. It has an energetic affinity for water, which it absorbs readily, so that a partially-filled bottle of acid, if exposed to the air, will, after a time, overflow; if quickly mixed with water it undergoes condensation, and much heat is evo...

Details & Specs

Title:Materia Medica And Therapeutics (volume 2, V. 2)Format:PaperbackDimensions:140 pages, 9.69 × 7.44 × 0.3 inPublished:February 3, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217232841

ISBN - 13:9780217232845

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