New PDF release: A Science of Impurity: Water Analysis in Nineteenth Century

By Christopher Hamlin

ISBN-10: 0520070887

ISBN-13: 9780520070882

A technological know-how of Impurity is the 1st targeted heritage of the mobilization of chemistry (and later bacteriology) to satisfy the general public call for for strong water. It additionally bargains a standpoint on realizing how glossy actual sciences are tapped to make sure public solid.
A technology of Impurity explores the social framework during which chemists got here to paintings on difficulties of water caliber, the recommendations they used to review the surroundings, their conclusions and their function in facing a apprehensive public.
For historians of technology, researchers and planners within the water undefined.

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Extra info for A Science of Impurity: Water Analysis in Nineteenth Century Britain

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Individual salts could be later separated from each of the fractions. with about nine times its weight of cold distilled water, which dissolved a great variety of alkaline and earthy salts, including nitrates, sulphates, carbonates, and chlorides of sodium and potassium, and sulphates of lime and magnesia. These too could be separated from one another at a later stage. Residue still insoluble after the first two treatments was boiled in 400500 times its weight of distilled < previous page page_27 next page > < previous page page_28 next page > Page 28 water, which would dissolve calcium sulphate.

Waters, mineral; John Mason Good and Olinthus Gregory, Pantologica. v. mineral waters, vol 8; Daniel Gibbon, A Compendium to the Chemical Chest (London: T Hurst, 1837), p 93; Saunders, Treatise, p 23. 25 Harry C Jones, The Nature of Solution (New York: D Van Nostrand, 1917), pp 20-34; Saunders, Treatise, pp 1617. 26 Allen Debus, 'Solution Analyses Prior to Robert Boyle,' Chymia 8 (1962): 41-61; E H Guitard, Le Prestigieux Passé des Eaux Minerales, pp 81-96; W Kirkby, The Evolution of Artificial Mineral Waters, pp 5-23.

Previous page page_32 next page > < previous page page_33 next page > Page 33 Murray was not denying that the inactive salts appeared in the residue; he was suggesting only that 'the state of combination . . ' As evaporation took place the acids and bases might switch partners. Hence what patients drank might be quite different from the sort of mixture a chemist might try to synthesize using an analysis of residue as a guide. Unlike many of his early eighteenth century predecessors who had made this argument without having a clear idea of exactly what sorts of changes analysis was likely to produce, Murray was not without a theoretical framework which made these radical ideas not only plausible, but likely.

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A Science of Impurity: Water Analysis in Nineteenth Century Britain by Christopher Hamlin


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