Formation Constants of Chromium(III), Scandium(III) and Yttrium(III) Complexes of Some Hydroxy Naphthoic Acids

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概要

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• The complexes of chromium(III), scandium(III) and yttrium(III) formed by 1-hydroxy-2-naphthoic acid (1,2-HNA: H_2L) and 3-hydroxy-2-naphthoic acid (3,2-HNA: H_2L) were investigated by potentiometry and spectroscopy at 25±0.1℃ and at an ionic strength of 0.1_M KNO_3 in 50% ethanol-water (v/v) medium. The stoichiometries of these three M(III) complexes formed with these hydroxy-naphthoic acids and with hydroxo ion were defined and their formation constants were determined and compared. Thus, the removing capacities of these ligands could be examined by calculating the equilibrium concentration of Cr(III) that exists in the discharge water of various industries since Cr(III) ions are the main pollutants present during waste water treatment in our city, Bursa.

• 2005-05-01

著者

• Aksoy Mehmet

  Department Of Chemistry Arts And Science Faculty Uludag University

• OZER Ulviye

  Department of Chemistry, Faculty of Arts and Sciences, Uludag University

• Turkel Naciye

  Department Of Chemistry Arts And Science Faculty Uludag University

• AYDIN Rahmiye

  Department of Chemistry, Arts and Science Faculty, Uludag University

• Ozer Ulviye

  Department Of Chemistry Arts And Science Faculty Uludag University

• Aydin Rahmiye

  Department Of Chemistry Arts And Science Faculty Uludag University

関連論文

• Potentiometric and Spectroscopic Studies on Aluminium(III) Complexes of Some Catechol Derivatives
• Formation Constants of Chromium(III), Scandium(III) and Yttrium(III) Complexes of Some Hydroxy Naphthoic Acids
• Complexes of Chromium(III) with 2,3-Dihydroxynaphthalene-6-sulfonic Acid and 4,5-Dihydroxynaphthalene-2,7-disulfonic Acid in Aqueous Solution
• Equilibrium Studies on Chromium(III) Complexes of Salicylic Acid and Salicylic Acid Derivatives in Aqueous Solution
• Salicylic Acid Derivatives Form Stable Complexes with Scandium(III) Ion in Aqueous Solution
• Stability of Binary and Ternary Copper(II) Complexes with 1,10-Phenanthroline, 2,2′-Bipyridyl and Some α-Amino Acids in Aqueous Medium

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