THE THERMODYNAMICS OF BENZOATE COMPLEXES OF COPPER(II) AND IRON(III) IN AQUEOUS-SOLUTION

BASARAN B., AVSAR E., GOCMEN A., ERIM F. B.

THERMOCHIMICA ACTA, cilt.247, sa.2, ss.407-413, 1994 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 247 Sayı: 2
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1016/0040-6031(94)80140-1
  • Dergi Adı: THERMOCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.407-413
  • Anahtar Kelimeler: BENZOATE, COPPER COMPOUND, IRON COMPOUND, THERMODYNAMICS, MANGANESE(II), COBALT(II)
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The thermodynamics of the complex formation reactions of copper(II) and iron(III) with benzoate ions have been determined by measuring the formation constants at different temperatures. The benzoate complexes of fairly hard acceptors, like Fe(III), are characterized by highly positive entropy changes. All measurements were carried out potentiometrically at 25, 35 and 40-degrees-C and in an ionic medium of 1 M, with sodium perchlorate as the background electrolyte.