title: [Not Available].
abstract: The behaviour of two organic compounds, 1,5-di[2-furyl]-1,4-pentadien-3-one (DFPO) and 1,5-di[2-thienyl]-1,4-pentadien-3-one (DTPO), as acid-base indicators has been studied by plotting the curves A = f(lambda) in the presence of various concentrations of perchloric acid, in anhydrous acetic acid medium. The values of pK(i)(HClO(4))) have been determined by spectrophotometry. The efficiency of these indicators in visual and colorimetric detection of the end-points of acid-base titrations has been examined.
authors.affiliation: Laboratoire de chimie analytique, Faculté des Sciences, Université de Tabriz, Tabriz, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Sarbar
authors.forename: S M
authors.initials: SM
authors.lastname: Golabi
authors.forename: M H
authors.initials: MH
authors.lastname: Pournaghi-Azar