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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 62

[page]60[/page]

[underlined]Separation with Hydrochloric Acid and Ester[/underlined][superscript](61)[/superscript]
     To the solution ([?of?] small [?illegible?]) add 10-15 cc of solution of equal parts [?ether?and?] concentrated hydrochloric acid. Into the solution [??] [??] 25-[?20?30?] cc [?gas? hydrochloric acid gas [?desaturation?]. (Keep the dish cool with [?running?] water). Add 5cc [?ether?]-[?8?X?] [?illegible?] perfect [?iron?]. [?] of the two solutions and [?pass?] hydrochloric acid gas through to perfect [?saturation?]. Transfer the precipitated aluminium chloride to an asbestos filter and wash with a solution of hydrochloric acid and ether-saturated, at [?15?] degrees C, with hydrochloric acid gas. Dry the precipitate 1/2 hour and cover it with a layer of pure mercuric oxide and quite gently at first and finally over a [?blast lamp?] and weigh as the oxide.
     After driving off the ether and excess hydrochloric acid from the filtrate determine the iron in the [?normal?] way.
     The separation is complete [??]. Only at first were faint traces of iron found in the aluminum and these were chiefly due to the iron of the mercuric oxide. The greatest opportunity for error is in the [?excretion?] of the precipitate. There is danger of particles of the

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[page]60[/page] [underlined]Separation with Hydrochloric Acid and Ester[/underlined][superscript](61)[/superscript] To the solution ([?of?] small [?illegible?]) add 10-15 cc of solution of equal parts [?ether?and?] concentrated hydrochloric acid. Into the solution [??] [??] 25-[?20?30?] cc [?gas? hydrochloric acid gas [?desaturation?]. (Keep the dish cool with [?running?] water). Add 5cc [?ether?]-[?8?X?] [?illegible?] perfect [?iron?]. [?] of the two solutions and [?pass?] hydrochloric acid gas through to perfect [?saturation?]. Transfer the precipitated aluminium chloride to an asbestos filter and wash with a solution of hydrochloric acid and ether-saturated, at [?15?] degrees C, with hydrochloric acid gas. Dry the precipitate 1/2 hour and cover it with a layer of pure mercuric oxide and quite gently at first and finally over a [?blast lamp?] and weigh as the oxide. After driving off the ether and excess hydrochloric acid from the filtrate determine the iron in the [?normal?] way. The separation is complete [??]. Only at first were faint traces of iron found in the aluminum and these were chiefly due to the iron of the mercuric oxide. The greatest opportunity for error is in the [?excretion?] of the precipitate. There is danger of particles of the