Antimony(V) tungstate as a new inorganic ion exchanger useful for removal of chromium(VI), mercury(II) and lead(II)

Department of Chemistry, Bappa Sri Narain Vocational Post-Graduate College, Lucknow-226 001, India Manuscript received 20 March 2002, revised 1 November 2002, accepted 31 January 2003 A new inorganic ion exchanger antimony(v) tungstate (AT) has been synthesized under varying conditions. Distribution coefficients (Kd) of 16 transition metal ions have been studied in DMW, 0.1 M HCl, 0.1 M HCI + 10% DMSO (1 : 10) and 1M NH4Cl systems, and some analytically important separations of metal ions have been investigated. The greater selectivity behavior of the exchanger for CrVI, HgII and PbII has been utilized for the removal and recovery of these metal ions from dilute water samples