The Life of Sir Humphry Davy, Bart., LL. D., Late President of the Royal Society, Foreign Associate of the Royal Institute of France, &c PDF Download
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Author: John Ayrton Paris
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ISBN:
Category : Coal mine accidents
Languages : en
Pages : 448
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Author: John Ayrton Paris
Publisher:
ISBN:
Category : Coal mine accidents
Languages : en
Pages : 448
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Book Description
Author: John Ayrton Paris
Publisher:
ISBN:
Category :
Languages : en
Pages : 484
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Author: John Ayrton Paris
Publisher:
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Category :
Languages : en
Pages : 482
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Author: John Ayrton Paris
Publisher:
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Category : Chemistry
Languages : en
Pages : 580
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Author: John Ayrton Paris
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 582
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Author: John Ayrton Paris
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Category :
Languages : en
Pages : 0
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Author: John Ayrton PARIS
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Category :
Languages : en
Pages : 476
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Author: John Ayrton Paris
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Category :
Languages : en
Pages : 490
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Author: John Ayrton Paris
Publisher: Cambridge University Press
ISBN: 1108073182
Category : Biography & Autobiography
Languages : en
Pages : 447
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The official biography of the eminent chemist and inventor Sir Humphry Davy (1778-1829), first published in 1831.
Author: John Ayrton Paris
Publisher: Rarebooksclub.com
ISBN: 9781230051291
Category :
Languages : en
Pages : 122
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1831 edition. Excerpt: ...the effects which successively presented themselves. In the course of two or three hours, the surface of the metal exhibited a yellow tarnish, and the water in which it was immersed contracted a cloudiness, the hue of which was at first white, but gradually became green. In less than a day, a bluish-green precipitate appeared, and constantly continued to accumulate in the bottom of the vessel; at the same time, the surface of the copper corroded, appearing red in the water, and grass-green where it was in contact with air. Upon this grass-green matter carbonate of soda formed; and these changes continued until the water became much less saline. The green precipitate he ascertained to consist of an insoluble compound of copper, (which he thinks may be considered as a hydrated sub-muriate, ) and hydrate of magnesia. According to his own views of the nature of chlorine, he immediately perceived that neither soda nor "' The Muriate of Magnesia is the most active salt in sea-water. magnesia could appear in sea-water by the action of a metal, unless in consequence of an absorption or transfer of oxygen, which in this case must either be derived from the atmosphere, or from the decomposition of water: his experiments determined that the former was the source which supplied it. By reasoning upon these phenomena, and applying for their explanation his electro-chemical theory, which had shown that chemical attractions may be exalted, modified, or destroyed, by changes in the electrical states of bodies, he was led to the discovery of a remedy for the corrosion of copper, by the very principle which enabled him, sixteen years before, to decompose the fixed alkalies. When he considered that copper is but Weakly positive in the...
