Gravimetric determination of zirconium with a new azopyrazolone derivative |
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| Authors: | G Popa G Baiulescu C Greff S Moldoveanu |
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| Institution: | Laboratory of Analytical Chemistry, Faculty of Science, University of Bucharest, BucharestRumania |
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| Abstract: | 3-Methyl-5-oxo-1-phenyl-2-pyrazolin-4-ylazo-2'-(6',8'-naphthalenedisulfonic acid) (disodium salt) is proposed as a new reagent for the gravimetric determination of zirconium. The precipitate formed at pH 1–1.5 can be weighed directly and there are few interferences. |
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