The London dispensatory, containing: I, the elements of pharmacy; II, the botanical description ... and medicinal properties, of the substances of the materia medica; III, the pharmaceutical preparations and compositions of the pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians / By Anthony Todd Thomson.

  • Thomson, Anthony Todd, 1778-1849.
Date:
1830
Catalogue details

Licence: Public Domain Mark

Credit: The London dispensatory, containing: I, the elements of pharmacy; II, the botanical description ... and medicinal properties, of the substances of the materia medica; III, the pharmaceutical preparations and compositions of the pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians / By Anthony Todd Thomson. Source: Wellcome Collection.

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    Chlorine with .........ssseeee6. Phosphureted hydrogen. ———$- ——— erevesaseeeseveeee Carbureted hydrogen. sosvcceedvescosece Olefiant gas. | scsesseeseeeseeees SUlphureted hydrogen. Mp devesereeeee sss. Nitrous gas. Sulphureted hydrogen with ... Nitrous gas. —————_——__—__ ———_ .... Sulphurous acid. The three first decompositions are attended with combustion. a. Phosphureted hydrogen with oxygen. The first of these gases may be regarded as phosphorus dissolved in hydro- gen; and consequently in that state which enables oxygen to act upon it at the ordinary temperature of the atmo- sphere. When the proportion of phosphorus is consi- derable, the combustion is extremely brilliant, and the caloric evolved is sufficient to set fire to the hydrogen. The products, when the combustion is incomplete, are water, phosphorous acid, and hydrophosphorous acid; but when it is complete, they are water and phosphoric acid. b. Chlorine and ammonia, when brought into contact, excite spontaneous combustion; one fourth of the ammonia is decomposed; the hydrogen of that portion uniting with the chlorine, and forming muriatic acid, which enters into combination with the remaining ammonia, whilst the azote is dissipated. Phosphureted hydrogen gas, when mixed with chlorine, burns, and exhibits a lively combustion. ‘The products are bichloride of phosphorus and common muriatic acid. d. Chlorine, when mixed with the heavy inflammable gases, does not occasion combustion, but slow and imperceptible decomposition takes place. Chlorine with nitrous gas has no reciprocal action : it is brought to the state of common muriatic acid; while the nitrous gas is converted into nitric acid. The requisite proportions, according to Humboldt’, are equal bulks of each gas. Sulphureted hydrogen gas and nitrous gas mixed together in a dry state suffer spontaneous decomposition; sulphur is deposited, and protoxide of azote, ammonia, and water, are produced. : Tas_e of gases which mix without spontaneous decomposition, but which may be made to decompose each other by peculiar treatment. Oxygen with sulphureted hydrogen. carbureted hydrogen. olefiant gas. C. é 1 Anne de Chimie, tom. xxviii, p. 142. Fr