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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 28

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It is supposed to have given very good results for the aluminium. There is some danger in washing with the hot ammoniacal solution of potassium cyanide. The method must be rapidly carried through in order to prevent the formation of the cyanide of iron as much as possible. 3. Sulphur - cyanide method. (14) This [?] adding an excess of potassium sulpho-cyanate to the solution of the iron and aluminium salts and then [?] the sulpho-cyanate of iron in ether. The solution is shaken with [?] portions of ether until the latter is not colored. The iron and aluminium are each determined in their separate solutions. This method is good only when the amount of iron present is relatively small when compared to the amount of aluminium.
 
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