Electrokinetic and Direct Force Measurements between Silica and Mica Surfaces in Dilute Electrolyte Solutions

Langmuir ◽  
1997 ◽  
Vol 13 (8) ◽  
pp. 2207-2214 ◽  
Author(s):  
Patrick G. Hartley ◽  
Ian Larson ◽  
Peter J. Scales
Keyword(s):  
Electrolyte Solutions ◽  
Force Measurements ◽  
Dilute Electrolyte Solutions

Thermodynamic properties of multicomponent electrolyte solutions in mixed solvents. 5• HCl + NaCl + urea + water at 278.5–318.15 K

1988 ◽  
Vol 66 (4) ◽  
pp. 637-644 ◽  
Author(s):  
Dian-Yuan Men ◽  
Jia-Zhen Yang ◽  
Chun-Yu Liang ◽  
Li-Tian Zhang ◽  
Huan Gao ◽  
...  
Keyword(s):  
Mixed Solvents ◽  
Electrolyte Solutions ◽  
Absolute Temperature ◽  
Molar Enthalpy ◽  
Free Energies ◽  
Force Measurements ◽  
Solution Theory ◽  
Electrolytic Solution ◽  
Harned's Rule ◽  
Electromotive Force Measurements

This paper reports electromotive force measurements of the cells[Formula: see text]and[Formula: see text]in mixed solvents of urea, mole fraction x = 0.05, at five temperatures from 278.15 to 318.15 K. The standard potentials of Ag–AgCl electrode in mixed solvents were obtained from the emf of cell (A) for HCl of molality mA from 0.02 to 0.11 mol kg−1, both by extrapolation on the basis of an extended Debye–Hückel equation and by a polynomial approach proposed in this paper on the basis of Pitzer's electrolytic solution theory. The standard free energies of transfer for HCl are discussed. The activity coefficients of HClγA in HCl + NaCl + urea + water have also been obtained from the emf of cell (B) at constant total ionic strength I = 0.5, 1.0, 1.5, and 2.0 mol kg−1. The experimental results show that HCl obeys Harned's rule and log γA is a linear function of absolute temperature T. They also indicate that the relative partial molar enthalpy of HCl obeys a similar Harned's rule.

The precision measurement of single ion diffusion coefficients

1958 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
R Mills ◽  
EW Godbole
Keyword(s):  
Precision Measurement ◽  
Diffusion Coefficients ◽  
Electrolyte Solutions ◽  
Radioactive Material ◽  
Ion Diffusion ◽  
Capillary Method ◽  
Dilute Electrolyte Solutions

The precision measurement of single ion diffusion coefficients in dilute electrolyte solutions would be of considerable value. A method is described which is capable of giving the required precision. It involves a modification of the open-ended capillary method by enclosure of the capillary of diffusing radioactive material in a scintillator so that its contents can be continually monitored during the course of diffusion.

Measurement of mass transfer coefficients with an electrochemical method using dilute electrolyte solutions

1994 ◽  
Vol 28 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Yutaka Sakakihara ◽  
Joseph R.V. Flora ◽  
Makram T. Suidan ◽  
Pratim Biswas ◽  
Masao Kuroda
Keyword(s):  
Mass Transfer ◽  
Electrochemical Method ◽  
Electrolyte Solutions ◽  
Transfer Coefficients ◽  
Mass Transfer Coefficients ◽  
Dilute Electrolyte Solutions

Force measurements between Teflon AF and colloidal silica particles in electrolyte solutions

2004 ◽  
Vol 250 (1-3) ◽  
pp. 357-366 ◽  
Author(s):  
Astrid Drechsler ◽  
Nicole Petong ◽  
Junfeng Zhang ◽  
Daniel Y. Kwok ◽  
Karina Grundke
Keyword(s):  
Colloidal Silica ◽  
Electrolyte Solutions ◽  
Silica Particles ◽  
Force Measurements ◽  
Teflon Af
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