A. K. Majumdar, B. K. Pal
1963
Citations
0
Influential Citations
7
Citations
Journal
Analytica Chimica Acta
Abstract
Phenylacetylhydroxamic acid is used to separate titanium and zirconium from niobium in an oxalate medium at pH 6.5--7.5 in presence of ammonium chloride at room temperature. The method is accurate when the ratio of (TiO/sub 2/ + ZrO/ sub 2/): Nb/sub 2/O/sub 5/ is 10: 1 to 1: 1; when the niobium concentration is higher, reprecipitation is necessary. Tantalum, citrate, tartrate, lactic acid, EDTA, and a large excess of oxalate interfere. (auth)