Study on 4-Formyloxime-3-Methyl-1-(2´ ,4´ -Dinitrophenyl)-2-Pyrazolin-5-one as a Gravimetric Reagent for Co(II), Ni(II) and Cu(II)

Abstract

4-Formyloxime-3-methyl-1-(2',4' -dinitrophenyl)-5-one can be
used as a gravimetric' reagent for Co(ll). Ni(ll) and Cu(ll). An
attempt has been made to determine (a) Cu(II) and Ni(II) (b) Cu(ll)
and Co(II) from their binary mixture at selective pH value. The
estimation of Co(ll), Ni(lI) and Cu(II) metal ions in the presence
of different metal ions such as Sr(II), Ca(ll), Cd(II), AI(III), Ba(lI)
and Mg(II) has also been carried out. Such interfering metal ions
failed to respond.