The Art of Electro-Metallurgy Including All Known Processes of Electro-De ...
The Art of Electro-Metallurgy Including All Known Processes of Electro-De ...
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In our eReader you can find the full English version of the book. Read The Art of Electro-Metallurgy Including All Known Processes of Electro-De ... 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 The Art of Electro-Metallurgy Including All Known Processes of Electro-De ...
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The wash waters, when filtered, still contain a little silver in solution ; because, if hydro- chloric acid is added to them, it produces a precipitate of chloride of silver. In evaporating and calcining a. solution of gold in cyanide of potassium, the result is similar, i.e. we obtain metallic gold. The wash waters, acidulated with hydrochloric acid, give, when treated with sulphuretted hydrogen, a brown precipitate of sulphide of gold ; and, with the salt of tin, a violet precipitate (purple ...of Cassius), — a proof that these liquids still contain a little gold in solution.
' 3. If we pour upon finely-divided silver — for instance, silver leaf, or silver precipitated in the porous state by zinc, from a solution of silver — a concentrated solution of cyanide of potassium, at the ordinary temperature, and shake it frequently, the liquid, at the end of a certain time, exhibits silver in solution, and by adding hydrochlonc acid to it, we produce an abundant precipitate of chloride of silver.
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To quickly assess the difficulty of the text, read a short excerpt:
The wash waters, when filtered, still contain a little silver in solution ; because, if hydro- chloric acid is added to them, it produces a precipitate of chloride of silver. In evaporating and calcining a. solution of gold in cyanide of potassium, the result is similar, i.e. we obtain metallic gold. The wash waters, acidulated with hydrochloric acid, give, when treated with sulphuretted hydrogen, a brown precipitate of sulphide of gold ; and, with the salt of tin, a violet precipitate (purple ...of Cassius), — a proof that these liquids still contain a little gold in solution.
' 3. If we pour upon finely-divided silver — for instance, silver leaf, or silver precipitated in the porous state by zinc, from a solution of silver — a concentrated solution of cyanide of potassium, at the ordinary temperature, and shake it frequently, the liquid, at the end of a certain time, exhibits silver in solution, and by adding hydrochlonc acid to it, we produce an abundant precipitate of chloride of silver.
What to read after The Art of Electro-Metallurgy Including All Known Processes of Electro-De ...?
You can find similar books in the "Read Also" column, or choose other free books by George Gore to read onlineMoreLess
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