Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current
Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current
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In our eReader you can find the full English version of the book. Read Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current
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To quickly assess the difficulty of the text, read a short excerpt:
tBerg- und hUUenmanTiviche Zeitung, 1891, p. 393.
§ Siemens & Halske (German Patent 66,592).
(I Cf, Mylius and Fromm, Berichte d. detUaehen, chem, OeselUdunfl, vol* xxvii. , p. 630.
IT The precipitate contains nitrate and requires further investigation.
Digitized by V^OO^ It!
ZINC. 399 alone and without oxidising agents, gave a smooth white deposit thronehont.
*'(3) The spongy zinc is produced only when the conditions are favourable to the formation of zinc oxide. A 10 per cent, solution of zin...c sulphate, which was intentionally made some- what turbid by precipitated oxide, gave a grey spongy zinc upon a sheet-zinc cathode after five minutes of electrolysis with a current of 1 ampere per sq. dm. [0*0645 amp. per sq. in.]. The action, however, was only observable at the level of the upper surface of the liquid.''^ "(4) The formation of spongy zinc is determined by the presence of foreign metals which produce an oxidation of the metal through electro-chemical action. Nahnsen has already proved many times that the zinc becomes spongy most readily when the solution contains such impurities as copper, arsenic, antimony, &c.
What to read after Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current?
You can find similar books in the "Read Also" column, or choose other free books by W Wilhelm Borchers to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
tBerg- und hUUenmanTiviche Zeitung, 1891, p. 393.
§ Siemens & Halske (German Patent 66,592).
(I Cf, Mylius and Fromm, Berichte d. detUaehen, chem, OeselUdunfl, vol* xxvii. , p. 630.
IT The precipitate contains nitrate and requires further investigation.
Digitized by V^OO^ It!
ZINC. 399 alone and without oxidising agents, gave a smooth white deposit thronehont.
*'(3) The spongy zinc is produced only when the conditions are favourable to the formation of zinc oxide. A 10 per cent, solution of zin...c sulphate, which was intentionally made some- what turbid by precipitated oxide, gave a grey spongy zinc upon a sheet-zinc cathode after five minutes of electrolysis with a current of 1 ampere per sq. dm. [0*0645 amp. per sq. in.]. The action, however, was only observable at the level of the upper surface of the liquid.''^ "(4) The formation of spongy zinc is determined by the presence of foreign metals which produce an oxidation of the metal through electro-chemical action. Nahnsen has already proved many times that the zinc becomes spongy most readily when the solution contains such impurities as copper, arsenic, antimony, &c.
What to read after Electric Smelting And Refining: the Extraction And Treatment of Metals By Means of the Electric Current?
You can find similar books in the "Read Also" column, or choose other free books by W Wilhelm Borchers to read onlineMoreLess
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