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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 40

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[page]38[/page] [table of 3 columns] [column 1] [underlined]Iron[/underlined]. Iron Ammonium Alum taken Wt. of crucible empty " " " [ditto for Wt. of crucible] + Fe[subscript]2[/subscript]O[subscript][?3?][/subscript] + ash. Ferric oxide. Iron @ 70.01% Amount in above. Percent found. [underlined]Aluminium[/underlined]. Potassium alum taken Weight of crucible empty " " " [ditto for Weight of crucible] + Ferric oxide + ash. Ferric oxide Iron @ 70.01%. Amount in above Percent found. [column 2] III. 0.5735 15.7068 [underlined]15.5906[/underlined] 0.1162 0.0813 0.0812 14.18% [?] 1.0477 24.2922 [underlined]24.1714[/underlined] 0.1138 0.1612 [?0.1596?] 5.75% [column 3] IV. 0.6253 15.2340 [underlined]15.1082[/underlined] 0.1258 [?0.0881?0.0884?] 0.0884 14.09% [?] [?0.7671?0.7678?] 25.4940 [underlined]25.4097[/underlined] 0.0843 [?0.0446?] 0.1437 5.82% [/table] In separations (I) and (II) the results are poor for the iron. The percentage of aluminium found in (II) is very close to the theoretical. From the second up the results are good. The first results obtained were so poor that they are not entered here, but many trials were not made before the separation began to work quite well.
 
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