pH dependence of electrokinetic behavior of dolomite and magnesite in aqueous electrolyte solutions

Gence N., Ozbay N.

APPLIED SURFACE SCIENCE, cilt.252, sa.23, ss.8057-8061, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 252 Sayı: 23
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.apsusc.2005.10.015
  • Dergi Adı: APPLIED SURFACE SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.8057-8061
  • Anahtar Kelimeler: dolomite, magnesite, electrokinetic potential, isoelectric point, pH, CARBONATES SOLUTION INTERFACE, SURFACE SPECIATION, DISSOLUTION, MODIFIERS, CALCITE
  • Anadolu Üniversitesi Adresli: Hayır

Özet

In this paper. electrokinetic potential and isoelectric point of dolomite (CaMg(CO3)2) and magnesite (MgCO3) were determined. The effect of various ions such as Mg2+, Ca2+, Na+ and CO32- on surface properties of dolomite and magnesite were also examined. Isoelectric points of dolomite and magnesite were determined as 6.3 and 6.8, respectively, in the absence of any electrolyte. H+ and OH- ions are the potential determining ions of magnesite and dolomite, as predicted by electrokinetic potential studies. (c) 2005 Elsevier B.V. All rights reserved.