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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 21

oxide. The latter should be [?] if the [?] is complete. If there are traces of iron the precipitate after ignition will be tinged with red, according to the amount of iron present. 
The greatest [issue?] will occur in the ignition of the precipitate. [?] contains considerable carbon. The effect upon the [alumen?] of the carbon is not appreciable except perhaps in the way of "puffing" and theb particles are carried away. For the case of the ferric oxide, unless care is taken, the oxide will be reduced to [??] or even to metallic iron. The oxalic acid is to [dry?] the carbonaceous precipitate and separate it from the filter and ignite the latter separately. Transfer the precipitate to a [?] and heat very gently at first. As the [charring?] goes on the mass swells and blackens and [?] here and there to let the gases escape. These gases [?] with a light [?] [?]. By the and of some fuming nitric acid the oxidation of this, black [?] mass is greatly aided. It must be added when the mass is cold for

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oxide. The latter should be [?] if the [?] is complete. If there are traces of iron the precipitate after ignition will be tinged with red, according to the amount of iron present. The greatest [issue?] will occur in the ignition of the precipitate. [?] contains considerable carbon. The effect upon the [alumen?] of the carbon is not appreciable except perhaps in the way of "puffing" and theb particles are carried away. For the case of the ferric oxide, unless care is taken, the oxide will be reduced to [??] or even to metallic iron. The oxalic acid is to [dry?] the carbonaceous precipitate and separate it from the filter and ignite the latter separately. Transfer the precipitate to a [?] and heat very gently at first. As the [charring?] goes on the mass swells and blackens and [?] here and there to let the gases escape. These gases [?] with a light [?] [?]. By the and of some fuming nitric acid the oxidation of this, black [?] mass is greatly aided. It must be added when the mass is cold for