This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1881 Excerpt: ...in the oxidizing flame to separate the lead, and the residue fused with salt of phosphorus: a. The bead is blue when cold in the oxidizing flame, but reduced with Sn on charcoal, becomes red, Copper. b. The bead is yellow when cold in oxidizing flame, Nickel. c. The bead is green when cold in oxidizing flame, Copper ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1881 Excerpt: ...in the oxidizing flame to separate the lead, and the residue fused with salt of phosphorus: a. The bead is blue when cold in the oxidizing flame, but reduced with Sn on charcoal, becomes red, Copper. b. The bead is yellow when cold in oxidizing flame, Nickel. c. The bead is green when cold in oxidizing flame, Copper and nickel. Section III. The substance is fused with acid potassium sulphate, dissolved in hydrochloric acid, and a strip of zinc added. (This section is passed by when tungsten, vanadium, titanium, and niobium are absent.) The solution becomes--26. Blue, then green, finally dark-brown, Molybdic acid. 26 Sp. T. See No. 19. 27. Blue, then copper-red, 27 Sp. T. See No. 23. 28. Blue, then green, finally violet, 28 Sp. T. See No. 22. 29. Green, .... 29 Sp. T. See No. 20. 30. Violet 30 Sp. T. See No. 24. 31. Blue, or in strongly acid solutions, brown, Niobio acid. Tungstic acid. Vanadic acid. Chromic acid.. Titanic acid. Section IV. The substance is placed in the nonluminous flame, with the platinum forceps or wire. a. The flame is colored, especially if the substance is moistened with HC1 or H2S04, . Nos. 32-42. b. The flame is not colored, Section V., Nos. 43-51. Examination For Bases. The color of the flame appears--39. Green, moistened with HCl, blue, .. Copper. Examination For Acids. 40. Yellowish-green, similar fo barium flame, Molybdic acid. 40 Sp. T. Gives with borax the reactions of No. 19. 41. Yellowish-green (salts moistened with H2S04), Phosphoric acid. 41 Sp. T. Heated with a piece of Mg wire, or of Na, in the closed tube, the mass, moistened with H20, gives the smell of phosphoretted hydrogen. 42. Green (salts moistened with H2S04), Boric acid. 42 Sp. T. With CaFl2 and HKS04, heated on platinum, gives the intense green flame of boron fluor
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Add this copy of Elderhorst's Manual, Rewritten and Revised: Manual of to cart. $63.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
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