Determination of Stability Constants of Mixed Ligand Complexes of the Lanthanum(III) Ion and Identification of Structures

Cam T., Irez G., AYDIN R.

JOURNAL OF CHEMICAL AND ENGINEERING DATA, cilt.56, sa.5, ss.1813-1820, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 5
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1021/je100799h
  • Dergi Adı: JOURNAL OF CHEMICAL AND ENGINEERING DATA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1813-1820
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In this study, the stability constants of a mixed ligand complex of lanthanum(III) ion by using ethylenediaminetetraacetic acid (EDTA, H(2)A) as a primary ligand and 2,3-dihydroxybenzoic acid (2,3-DHBA, H3B) as a secondary ligand have been investigated. The stability constants of the binary and mixed ligand complexes have been determined by using a potentiometric method and the BEST computer program at 25 degrees C, in a 0.1 M NaCl ionic medium. In addition, the identified ternary complex by potentiometry was isolated as a solid, and the structural characteristics have been examined using IR, NMR, elemental analysis, differential thermal analysis, thermogravimetric analysis, and the conductivity method.