Separation of $Cd^{2+}$ and $Pb^{2+}$ by means of their coprecipitation on $BaTiO(C_2O_4)_2{\cdot}4H_2O$ precipitate

$BaTiO(C_2O_4)_2{\cdot}4H_2O$ 공침법에 의한 $Cd^{2+}$$Pb^{2+}$의 분리

  • Min, Chonkyu (Research Institute for Natural Sciences and Department of Chemistry, Hanyang University) ;
  • Noh, Taeyong (Research Institute for Natural Sciences and Department of Chemistry, Hanyang University) ;
  • Lee, Chul (Research Institute for Natural Sciences and Department of Chemistry, Hanyang University)
  • 민천규 (한양대학교 자연과학연구소, 자연과학대학 화학과) ;
  • 노태용 (한양대학교 자연과학연구소, 자연과학대학 화학과) ;
  • 이철 (한양대학교 자연과학연구소, 자연과학대학 화학과)
  • Received : 1996.10.01
  • Published : 1997.02.25

Abstract

Barium titanyl oxalate which is a precursor of barium titanate has been precipitated at pH 4~5 by a rapid addition of aqueous titanyl oxalate solution to artificial environmental water samples containing equivalent weight of $Ba^{2+}$ ions. Quantitative recoveries of $Cd^{2+}$ and $Pb^{2+}$ from the water samples has been confirmed and found to be usable as a possible method of preconcentration for their determination.

Keywords

Water samples;Cadmium;Lead;Barium titanyl oxalate;Coprecipitation

Acknowledgement

Supported by : 교육부 기초과학연구소