2-HYDROXY-4-n-BUTOXYPROPIOPHENONE OXIME AS A SPECTROPHOTOMETRIC REAGENT FOR Fe(III)

2-Hydroxy-4-n-butoxypropiophenone oxime [HnBPO] has been synthesized and used for the spectrophotometric determination of Fe(III). The reagent gives purple coloured complex with Fe(III) in 50% alcoholic medium in pH range of 2.5 - 4.5. Beer’s law is obeyed up to 23.1 ppm of Fe(III). Molarabsorptivity and Sandell’s sensitivity at 500 nm of complex were found to be 7.062 x 102 lit.mol-1.cm-1and 0.079 (mu)g of Fe(III)/cm2 respectively. Composition and stability constant have been determined. The reagent is successfully used for determination of Fe(III) in dolomite and in pharmaceutical sample. It is also used for the indirect determination of fluoride in tap water sample.