DIY History | Transcribe | Scholarship at Iowa | The Analytical Separation of Iron and Aluminium by Henry Erdmann Radasch, 1897 | The Analytical Separation of Iron and Aluminium by Henry Erdmann Radasch, 1897, Page 38

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The Analytical Separation of Iron and Aluminium by Henry Erdmann Radasch, 1897

The Analytical Separation of Iron and Aluminium by Henry Erdmann Radasch, 1897, Page 38

[page]36[/page]

later with the two bunsons. If the nitric acid is added while the crucible is warm a lively incandescence ensues accompanied by a sort of puffing which throws up particles of the precipitate which are lost. The resulting ferric oxide is of a pretty red color and is a very loose fluffy mass, very easily blown about. After weighing the precipitate was again moistened, wiht [?with?] nitric acid and ignited. This process was repeated until the weight was constant.
     The aluminium hydrate precipitates were of various shades of green, at first, but changed to brown upon boiling. In nearly all cases the [?aluminum softening in nitron?]) were pure white. In some cases the color was pale green but the color did not seem to affect the weight. Mass tinged with red, iron was contained.
     The greatest source of error [?occurred?] in the ignition of the ferric oxide. True, unless great care is taken, the excess of carbon acts as a reducing agent and [?rre?] salts are obtained. Then again care must be [?exercised?] -- the addition of the

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[page]36[/page] later with the two bunsons. If the nitric acid is added while the crucible is warm a lively incandescence ensues accompanied by a sort of puffing which throws up particles of the precipitate which are lost. The resulting ferric oxide is of a pretty red color and is a very loose fluffy mass, very easily blown about. After weighing the precipitate was again moistened, wiht [?with?] nitric acid and ignited. This process was repeated until the weight was constant. The aluminium hydrate precipitates were of various shades of green, at first, but changed to brown upon boiling. In nearly all cases the [?aluminum softening in nitron?]) were pure white. In some cases the color was pale green but the color did not seem to affect the weight. Mass tinged with red, iron was contained. The greatest source of error [?occurred?] in the ignition of the ferric oxide. True, unless great care is taken, the excess of carbon acts as a reducing agent and [?rre?] salts are obtained. Then again care must be [?exercised?] -- the addition of the