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Bog, hæftet Researches on the Arseniates, Phosphates and Modifications of Phosphoric Acid (Classic Reprint) af Thomas Graham

Researches on the Arseniates, Phosphates and Modifications of Phosphoric Acid (Classic Reprint)

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Excerpt from Researches on the Arseniates, Phosphates and Modifications of Phosphoric Acid

To a strong solution of arseniate or phosphate of soda add a solution of caustic soda till the liquor feels soapy between the fingers. At least half as much soda as already in the salt ... Læs mere

Excerpt from Researches on the Arseniates, Phosphates and Modifications of Phosphoric Acid

To a strong solution of arseniate or phosphate of ... Læs mere

Produktdetaljer:

Sprog:
Engelsk
ISBN-13:
9781334332777
Sideantal:
52
Udgivet:
01-11-2016
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Excerpt from Researches on the Arseniates, Phosphates and Modifications of Phosphoric Acid

To a strong solution of arseniate or phosphate of soda add a solution of caustic soda till the liquor feels soapy between the fingers. At least half as much soda as already in the salt must be added, but an excess of alkali is not injurious. Concentrate the liquor till a pellicle forms on its surface, and then allow the solution to cool. At the temperature of 1 tufts of slender prismatic crystals appear in it; these rapidly increase in quantity, and finally fill the vessel. The crystals must be drained as well as possible, and the mother-liquor may be thrown away, as it contains little else than the excess of caustic soda and the soluble impurities of the salts. It is neces sary, without loss of time, to redissolve the crystals in twice their weight of hot water, to filter the solution through paper, and to recrystallize.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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