Memoirs and Proceedings

Memoirs and Proceedings

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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. 1798 edition. Excerpt: ...exhibit it in the form of dephlogisticated air, or of some other substance into which oxygen is allowed to enter.--I confess that, as far as I know, this has not yet been done; but, though we have not hitherto nitric acid. If, for instance, the sulphate of potash, or of soda, be dissolved in equal parts of strong nitric acid in a suflicient heat, nitrate of soda, or of potash, is found in the mixture when it is become cold. But Scheele has observed, that only one third of the sulphate is decomposed in this way. That the weaker substance should thus displace the more powerful one, is a paradox in the doctrine of afiinities, and cannot be satisfactorily explained. Probably the excess in quantity makes up for the defectof the power of attraction. Thus Margraaf decomposed completely the nitrate of soda by muriatic acid, when he distilled one part the former with eight parts of the latter. This process is analogous to the entire decomposition of the red oxyd of mercury by caloric. found the means of analysing this substance, we are able to shew its composition by synthesis; and this method is at least as decisive as the analytical. Sup posing-we were unacquainted with the means of de composing any neutral salt, br example, Glauber's salt, there would be hardly any one so incorrigibly a sceptic, as to doubt that it is composed of sulphuric acid and soda; if by combining these substances we produced that salt. This is exactly the case'with finery cinder. We have-seen (by the fine experiments made by Dr. Priestley, with iron heated in oxygenous gas, of which I gave an abstract in the former part of this paper) that the oxygen combined with the iron, and produced a calciform substance; which he found, by various experiments, to be the same thing...show more

Product details

  • Paperback | 72 pages
  • 189 x 246 x 4mm | 145g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236579445
  • 9781236579447