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Distribution of Zirconium and Hafnium between Cation-exchange Resin and Acid Solutions. The Column Separation with Nitric Acid-Citric Acid Mixture *

โœ Scribed by Benedict, Joseph T.; Schumb, Walter C.; Coryell, Charles D.


Book ID
127196752
Publisher
American Chemical Society
Year
1954
Tongue
English
Weight
608 KB
Volume
76
Category
Article
ISSN
0002-7863

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Hafnium (10-110 lg ml-l) is quantitatively extracted at pH 4.6 from 0.01 M citric acid with 0.1 M Amberlite LA-1 in xylene; it can be stripped with 0.1 M perchloric acid and determined spectrophotometrically with xylenol orange at 540 nm. Hafnium can be separated from binary and multicomponent mixtu