Practical directions for the preparation of aërated waters, and the various compounds of carbonic acid gas, by Bakewell's patent apparatus : with observations upon the pharmaceutical and therapeutical agencies ... / By Robert Venables.

  • Venables, Robert, 1783 or 1784-1872.
Date:
1843
Catalogue details

Licence: Public Domain Mark

Credit: Practical directions for the preparation of aërated waters, and the various compounds of carbonic acid gas, by Bakewell's patent apparatus : with observations upon the pharmaceutical and therapeutical agencies ... / By Robert Venables. Source: Wellcome Collection.

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    PREFACE. Last year, when engaged with Mr. Knight upon the construction of a chemical chest, he directed my at- tention to the Patent Aerating Apparatus, for the more easy and effectual preparation of the purest soda water, and free from every possible impurity or contamination. On explaining to me the construction and use of the Apparatus, I was no less surprised than gratified at its extreme simplicity. On reflection, it occurred to me that it might be rendered subservient to pharmaceutical purposes; but my views at first were limited to the preparation of proto-carbonate of iron, for the fulfilment of therapeutical indications. The administration of iron in its most efficient form, that of proto-salt, has long been an object of anxious speculation. Not that the preparation of protoxide proves a difficulty in che- mistry, but the preservation of it in this state has hitherto proved an insurmountable obstacle. The proto-salts of iron pass so rapidly into persalts that they cannot be conveniently preserved at the minimum of