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S U W YThe synthesis and analytical properties of 2-pyri1ideniminobenzohydroxamic acid (2-PIBHA) as well ar itr reactivity with inorganic ions are described. in rteel.Both methods were applied with sucess to the determination of vanadium(V)

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The reaction of Ti(IV) with 2-pyrilideniminobenzohydroxamic acid (2-PIBHA) was st; died in aqueous medium and by using an extraction in isoamyl alcohol. The stoichiometries of the complexes formed are 1:l and 1:3 (Ti(1V):reagent) in both cases.The extraction and spectrophotometric determination of titanium with 2-PIBHA can be performed in a concentration range from 0.1 to 1.4 pg/ml of Ti(1V). The apparent m l a r absorptivity in isoamyl alcohol is 39600 1.mol-' .cm-' at 375 nm. The relative error of the method is + 0.64T for 25 ug of Ti(IV) in the aqueous phase (50 ml) and the extraction constant 1s 1 . 0 5~1 0~ .