Liquid–liquid extraction of scandium with nalidixic acid in dichloromethane
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  • 作者:Yasar Arafat Abbasi (1)
    Akbar Ali (2) akbar@pinstech.org.pk
    Muhammad Haleem Khan (1)
    Muhammad Mufazzal Saeed (2)
    Kashif Naeem (3)
  • 关键词:Liquid–liquid Extraction – Sc(III) – Nalidixic acid – Dichloromethane
  • 刊名:Journal of Radioanalytical and Nuclear Chemistry
  • 出版年:2012
  • 出版时间:April 2012
  • 年:2012
  • 卷:292
  • 期:1
  • 页码:277-283
  • 全文大小:346.0 KB
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  • 作者单位:1. Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, AJK, Pakistan2. Chemistry Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan3. Central Analytical Facility Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Nuclear Chemistry
    Physical Chemistry
    Nuclear Physics, Heavy Ions and Hadrons
    Diagnostic Radiology
    Inorganic Chemistry
  • 出版者:Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
  • ISSN:1588-2780
文摘
The extraction behavior of nalidixic acid (HNA) in CH2Cl2 has been studied for various di- and trivalent metal ions such as Cu(II), Fe(II), Ni(II), Mn(II), Sb(II), Co(II), Sc(III), Y(III), Nd(III) and Eu(III) from aqueous buffer solutions of pH 1–7 with 0.1 mol dm?3 nalidixic acid in dichloromethane. Separation factors of Sc(III) from these metals has shown that its clean separation is possible at pH 3.4–4. The parameters affecting the extraction of Sc(III) were optimized. The composition of the extracted adduct was determined by slope analysis method that came out to be Sc(NA)3. Extraction of Sc(III) was studied in the presence of various cations and anions. Among the anions studied only fluoride, citrate and oxalate have significant interference whereas, Fe(III) has reduced the extraction to 53% that can be removed by using ascorbic acid as reducing agent. The proposed extraction system proved good stability up to six extraction-stripping stages for the extraction of Sc(III).

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