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. 1915 edition. Excerpt: ...of two radicals. In the halogen salts of the metals both radicals are simple or elementary. In the ammonium salts the metallic" radical is compound. In the cyanides, sulphates, nitrates, etc. the "non-metal" is replaced by a compound radical, cyanogen CN, sulphate S04, nitrate N03, etc. These radicals ...
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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. 1915 edition. Excerpt: ...of two radicals. In the halogen salts of the metals both radicals are simple or elementary. In the ammonium salts the metallic" radical is compound. In the cyanides, sulphates, nitrates, etc. the "non-metal" is replaced by a compound radical, cyanogen CN, sulphate S04, nitrate N03, etc. These radicals are the first products of the action of an electric current on-the salts. B. Decomposition Of The Alkalis Volta, in 1790, discovered that electric charges appeared on insulated discs of zinc and copper if brought into contact and then separated; in 1800, he devised a Voltaic pile in which the charges were constantly renewed and a continuous electric current was produced. The pile was soon developed into the Voltaic battery and very large batteries were constructed in England for Davy and in France for Gay-Lussac and Thenard. Nicholson and Carlisle, in 1801, showed that water was decomposed by the electric current into oxygen and hydrogen 2H20- 2H2 + 02 Berzelius andHisinger, in 1803, showed that dissolved salts were decomposed into alkali and acid by the electric current, e.g.: Na2SO, + 2H20-2NaOH + H2S04 (Sodium (Caustic (Sulphuric sulphate.) soda.) acid.). These two actions were regarded by Daniell in 1840 as due to a decomposition of the salt into its two radicals, e.g. Na2S04-2Na + S04; the radicals then acted on the water, so that caustic soda and hydrogen were produced together at the negatively-charged electrode (Faraday's kathode) where the current left the liquid, whilst sulphuric acid and oxygen were produced together at the positively charged electrode (Faraday's anode) where the current entered the liquid, thus: Kathode: 2Na + 2H,0-2NaOH + H2 Anode: S04 + H26-H2S04 + 02 Davy, in 1807, after having...
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 800grams, ISBN:
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 850grams, ISBN: