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

摘要

A new inorganic ion exchanger antimony(V)tungstate(AT)has been synthesized under varying conditions.Distribution coefficients(K_d)of 16 transition metal ions have been studied in DMW,0.1 M HCl,0.1 M HCl + 10% DMSO(1 : 10)and 1 M NH_4CI systems,and some analytically important separations of metal ions have been investigated.The greater selectivity behavior of the exchanger for Cr~VI,Hg~II and Pb~II has been utilized for the removal and recovery of these metal ions from dilute water samples.