TY - JOUR
T1 - Electrokinetics at high ionic strengths: Alumina
AU - Kosmulski, Marek
AU - Dahlsten, Per
AU - Próchniak, Piotr
AU - Rosenholm, Jarl B.
PY - 2007/5
Y1 - 2007/5
N2 - Electrophoresis was used to study ζ potentials of α-alumina in the presence of the following electrolytes: LiI, LiNO3, NaCl, NaBr, NaNO3, KCl, KNO3, CsCl, at concentrations up to 2 M. Unexpectedly high values of the ζ potentials (up to 20 mV) were found at pH 4 in 1 M solutions of these electrolytes. The results obtained at pH > 9 in the presence of 1 and 2 M solutions of lithium salts suggest a shift in the IEP to high pH, which is analogous to a shift observed by means of electroacoustic method. © 2007 Elsevier B.V. All rights reserved.
AB - Electrophoresis was used to study ζ potentials of α-alumina in the presence of the following electrolytes: LiI, LiNO3, NaCl, NaBr, NaNO3, KCl, KNO3, CsCl, at concentrations up to 2 M. Unexpectedly high values of the ζ potentials (up to 20 mV) were found at pH 4 in 1 M solutions of these electrolytes. The results obtained at pH > 9 in the presence of 1 and 2 M solutions of lithium salts suggest a shift in the IEP to high pH, which is analogous to a shift observed by means of electroacoustic method. © 2007 Elsevier B.V. All rights reserved.
KW - Common intersection point
KW - Isoelectric point
KW - Point of zero charge
KW - Zeta potential
UR - https://www.mendeley.com/catalogue/6e60f03b-e2eb-3e4a-887f-a37e3b179b30/
U2 - 10.1016/j.colsurfa.2007.01.015
DO - 10.1016/j.colsurfa.2007.01.015
M3 - Article
SN - 0927-7757
VL - 301
SP - 425
EP - 431
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
IS - 1-3
ER -