Abstract
Different extrapolation methods of AC impedance spectra measured in a conductance cell with concentric cylinder geometry have been evaluated at room temperature. This was undertaken because previous high temperature studies showed that the extrapolation method was one of the largest contributors to the uncertainty for molar conductivities at high concentrations: these high concentrations are needed to determine ion-pairing formation constants under hydrothermal conditions. This was done by measuring the impedance spectrum of sodium chloride solutions with ionic strengths up to 0.49 mol·kg−1 and comparing different extrapolation methods to accurate molar conductivity results reported by other authors using cells designed for concentrated solutions at ambient conditions. The most accurate extrapolation method at high concentrations was found to be the method based on the expression \( Z_{\text{Re}} \left( \omega \right) = R_{s} + b_{0} \cdot \omega^{{ - b_{1} }} \), where Z Re(ω) is the real component of the angular frequency-dependent impedance, and R s, b 0 and b 1 are fitting parameters.
Similar content being viewed by others
References
Noyes, A.A.: The Electrical Conductivity of Aqueous Solutions. Carnegie Institution of Washington, Publication No. 63 (1907)
Franck, E.U.: Hochverdichteter Wasserdampf I. Elektrolytische Leitfähigkeit in KCl–H2O–Lösungen bis 750 °C. Z. Phys. Chem., Neue Folge 8, 92–105 (1956)
Franck, E.U., Savolainen, J.E., Marshall, W.L.: Electrical conductance assembly for use with aqueous solutions up to 800 °C and 4000 bar. Rev. Sci. Instruments 33, 115–117 (1962)
Ho, P.C., Palmer, D.A., Mesmer, R.E.: Electrical conductivity measurements of aqueous sodium chloride solutions to 600 °C and 300 MPa. J. Solution Chem. 23, 997–1017 (1994)
Zimmerman, G.H., Gruskiewicz, M.S., Wood, R.H.: New apparatus for conductance measurements at high temperatures: conductance of aqueous solutions of LiCl, NaCl, NaBr, and CsBr at 28 MPa and water densities from 700 to 260 kg m−3. J. Phys. Chem. 99, 11612–11625 (1995)
Ho, P.C., Bianchi, H., Palmer, D.A., Wood, R.H.: Conductivity of dilute aqueous electrolyte solutions at high temperatures and pressures using a flow cell. J. Solution Chem. 29, 217–235 (2000)
Hnedkovsky, L., Wood, R.H., Balashov, V.N.: Electrical conductances of aqueous Na2SO4, H2SO4, and their mixtures: limiting equivalent ion conductances, dissociation constants, and speciation to 673 K and 28 MPa. J. Phys. Chem. B 109, 9034–9046 (2005)
Zimmerman, G.H., Scott, P.W., Greynolds, W.: A new flow instrument for conductance measurements at elevated temperatures and pressures: measurements on NaCl(aq) to 458 K and 1.4 MPa. J. Solution Chem. 36, 767–786 (2007)
Chialvo, A., Gruszkiewicz, M.S., Simonson, J.M., Palmer, D.A., Cole, D.R.: Ion-pair association in extreme aqueous environments: molecular-based and electrical conductance approaches. J. Solution Chem. 38, 827–841 (2009)
Fogo, J.K., Copeland, C.S., Benson, S.W.: A pressure counterbalancing apparatus for the measurement of the electrical conductivity of aqueous solutions above their critical temperatures. Rev. Sci. Instrum. 22, 765–769 (1951)
Nichol, J.C., Fuoss, R.M.: A new cell design for precision conductimetry. J. Phys. Chem. 58, 696–699 (1954)
Zimmerman, G.H., Arcis, H., Tremaine, P.R.: Limiting conductivities and ion association constants of aqueous NaCl under hydrothermal conditions: experimental data and correlations. J. Chem. Eng. Data 57, 2415–2429 (2012)
Zimmerman, G.H., Arcis, H., Tremaine, P.R.: Limiting conductivities and ion association in aqueous NaCF3SO3 and Sr(CF3SO3)2 from 298 to 623 K at 20 MPa. Is triflate a non-complexing anion in high-temperature water? J. Chem. Eng. Data 57, 3180–3197 (2012)
Sharygin, A.V., Wood, R.H., Zimmerman, G.H., Balashov, V.N.: Multiple ion association versus redissociation in aqueous NaCl and KCl at high temperatures. J. Phys. Chem. B 106, 7121–7134 (2002)
Fisher, F.H., Fox, A.P.: Conductance of aqueous NaCl solutions at pressures up to 2000 atm. J. Solution Chem. 10, 871–879 (1981)
Chambers, J.F., Stokes, J.M., Stokes, R.H.: Conductances of concentrated aqueous sodium and potassium chloride solutions at 25 °C. J. Phys. Chem. 60, 985–986 (1956)
Shedlovsky, T.: The electrolytic conductivity of some uni-univalent electrolytes in water at 25 °C. J. Am. Chem. Soc. 54, 1411–1428 (1932)
Robinson, R.A., Stokes, R.H.: Electrolyte Solutions, 2nd edn. Butterworths, London (1965)
Bester-Rogac, M., Neueder, R., Barthel, J.: Conductivity of sodium chloride in water + 1,4-dioxane mixtures at temperatures from 5 to 35 °C. I. Dilute solutions. J. Solution Chem. 28, 1071–1086 (1999)
Bester-Rogac, M., Neueder, R., Barthel, J.: Conductivity of sodium chloride in water + 1,4-dioxane mixtures at temperatures from 5 to 35 °C. II. Concentrated solutions. J. Solution Chem. 29, 51–61 (2000)
De Leo, Méndez, Wood, R.H.: Conductance study of association in aqueous CaCl2, Ca(CH3COO)2, and Ca(CH3COO)2·nCH3COOH from 348 to 523 K at 10 MPa. J. Phys. Chem. B 109, 14243–14250 (2005)
Bard, A.J., Faulkner, L.R.: Electrochemical Methods: Fundamentals and Applications. John Wiley & Sons, New York (2001)
Balashov, V.N., Fedkin, M.V., Lvov, S.N.: Experimental system for electrochemical studies of aqueous corrosion at temperatures above 300 °C. J. Electrochem. Soc. 156, C209–C213 (2009)
MacDonald, J.R., Johnson, W.B.: Fundamentals of Impedance Spectroscopy. In: Barsoukov, E., MacDonald, J.R. (eds.) Impedance Spectroscopy Theory, Experiment and Applications, pp. 1–26. Wiley-Interscience, New York (2005)
Orazem, M.E., Tribollet, B.: Electrochemical Impedance Spectroscopy. Wiley, Hoboken (2008)
Ragheb, T., Geddes, L.A.: The polarization impedance of common electrode metals operated at low current density. Ann. Biomed. Eng. 19, 151–163 (1991)
Raistruck, I.D., Franceschetti, D.R., MacDonald, J.R.: The Electrical Analogs of Physical and Chemical Processes. In: Barsoukov, E., MacDonald, J.R. (eds.) Impedance Spectroscopy Theory, Experiment and Applications, pp. 27–75. Wiley, New York (2005)
Madekufamba, M., Tremaine, P.R.: Ion association in dilute aqueous magnesium sulfate and nickel sulfate solutions under hydrothermal conditions by flow conductivity measurements. J. Chem. Eng. Data 56, 889–898 (2011)
Erickson, K.M., Arcis, H., Raffa, D., Zimmerman, G.H., Tremaine, P.R.: Deuterium isotope effects on the ionization constant of acetic acid in H2O and D2O by AC conductance from 368 to 548 K at 20 MPa. J. Phys. Chem. B 115, 3038–3051 (2011)
Gruszkiewicz, M.S., Wood, R.H.: Conductance of dilute LiCl, NaCl, NaBr, and CsBr solutions in supercritical water using a flow conductance cell. J. Phys. Chem. B 101, 6549–6559 (1997)
Zimmerman, G.H., Wood, R.H.: Conductance of dilute sodium acetate solutions to 469 K and of acetic acid and sodium acetate/acetic acid mixtures to 548 K and 20 MPa. J. Solution Chem. 31, 995–1017 (2002)
Barthel, J., Feuerlein, F., Neuder, R., Wachter, R.: Calibration of conductance cells at various temperatures. J. Solution Chem. 9, 209–219 (1980)
Fisher, F.H., Fox, A.P.: Electrical conductance of aqueous solutions of KCl solutions at pressures up to 2000 atm. J. Solution Chem. 8, 627–634 (1979)
Archer, D.G.: Thermodynamic properties of the NaCl+H2O system. II. Thermodynamic properties of NaCl(aq), NaCl·2H2O(cr), and phase equilibria. J. Phys. Chem. Ref. Data 21, 793–829 (1992)
Adams, L.H., Hall, R.E.: The effect of pressure on the electrical conductivity of solutions of sodium chloride and of other electrolytes. J. Phys. Chem. 35, 2145–2163 (1931)
Franceschetti, D.R., MacDonald, J.R.: Physical and Electrochemical Models. In: Barsoukov, E., MacDonald, J.R. (eds.) Impedance Spectroscopy Theory, Experiment and Applications, pp. 91–95. Wiley, New York (2005)
Bonanos, N., Steele, B.C.H., Butler, E.P.: Measuring Techniques and Data Analysis. In: Barsoukov, E., MacDonald, J.R. (eds.) Impedance Spectroscopy Theory, Experiment and Applications, pp. 232–234. Wiley, New York (2005)
Primdahl, S., Hendriksen, P.V.: Pitfalls in solid electrode characterization. In: Poulsen, F.W., Bonanos, N., Linderoth, S., Mogensen, M., Zachau-Christiansen, B. (eds.) Proceedings of the 17th Riso International Symposium on Materials Science: High Temperature Electrochemistry; Ceramics and Metals, pp. 403–410. Riso National Laboratory, Roskilde, Denmark (1996)
Zimmerman, G.H., Scott, P.W., Greynolds, W.: Conductance of dilute hydrochloric acid solutions to 458 K and 1.4 MPa. J. Solution Chem. 38, 499–512 (2009)
MacDonald, J.R.: Data Analysis. In: Barsoukov, E., MacDonald, J.R. (eds.) Impedance Spectroscopy Theory, Experiment and Applications, pp. 199–204. Wiley, New York (2005)
Acknowledgments
The authors express deep gratitude to Professor Robert H. Wood, University of Delaware, for donating the AC conductance cell to the Hydrothermal Chemistry Laboratory at the University of Guelph, for providing us with the benefit of his extensive operating experience, and for many productive discussions. We also thank Professor Peter Tremaine for many fruitful discussions and his helpful, insightful comments on this manuscript. We are also grateful to Mr. Ian Renaud and Mr. Case Gielen of the electronics shop and machine shop in the College of Physical and Engineering Science at the University of Guelph, for their very considerable expertise in maintaining and modifying the instrument and its data acquisition system. We also thank Mr. Conor Flynn, Bloomsburg University (B. S. Chemistry, 2014) for performing simulation calculations of the equivalent electrical circuit. This research was supported by the Natural Science and Engineering Research Council of Canada (NSERC), Ontario Power Generation Ltd. (OPG), the University Network of Excellence in Nuclear Engineering (UNENE), and Bloomsburg University for sabbatical leave (G.H.Z.). G.H.Z. would like to express appreciation for the financial support provided by Fulbright Canada, and gratitude for the support of the governments of Canada and the United States in making this program possible.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zimmerman, G.H., Arcis, H. Extrapolation Methods for AC Impedance Measurements Made with a Concentric Cylinder Cell on Solutions of High Ionic Strength. J Solution Chem 44, 912–933 (2015). https://doi.org/10.1007/s10953-014-0208-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10953-014-0208-x