A method for the separation of aluminum from iron

Determination of Aluminum and Magnesium in Zinc-Base Die-Casting Alloys

“…Additional precipitations using 10 grams of solid ammonium chloride upon the second precipitation gave results little better than the preceding determinations. (6) The method of Gooch and Havens (8), although applicable to some separations, need hardly be considered. It is not only tedious, but with the various inaccuracies of the method and the necessity for small volume and consequently a small sample the value of the result would be questionable.…”

Analysis of Magnesia

“…Four analyses made by the above method gave values of 0.87, 0.84, 0.84, and 0.86%. In the case of light-burned magnesia, accuracy was established by using the classical etherhydrogen chloride procedure (7), precipitating as aluminum chloride, and finally weighing as aluminum oxide. Results on samples anatyzed by both the colorimetric procedure and the ether-hydrogen chloride method are given in Table III and substantiate the accuracy of the colorimetric procedure.…”

Separation and determination of aluminum and beryllium using tannin

“…beryllium in equal parts of hydrochloric acid and ether (6), the use of tannin (IB), and the most recent method proposed by Kolthoff and Sandell (9) and modified by Knowles (7) in which 8-hydroxyquinoline is used to precipitate and remove the aluminum.…”