TY - JOUR
T1 - A Pitzer-based characterization of aqueous magnesium chloride, calcium chloride and potassium iodide solution densities to high temperature and pressure
AU - Rowland, Darren
AU - May, P.M.
PY - 2013
Y1 - 2013
N2 - A comprehensive characterization of densities/apparent molar volumes for the aqueous solutions of magnesium chloride, calcium chloride and potassium iodide to high temperatures and pressures has been performed based on the Pitzer equations. The unusual availability of overlapping high quality independent sets of experimentally measured data for these systems allows the relevant thermodynamic quantities to be calculated with a high degree of confidence over wide ranges of conditions (<8molkg-1; 273-573K; 0.1-100MPa). A realistic assessment of experimental uncertainty indicates that an adequate description of volumetric behaviour is achieved by the standard Pitzer model without extensions. The experimental accuracy implied by differences between independent observers, however, is more than one order of magnitude worse than typically claimed estimates of experimental precision. © 2012 Elsevier B.V.
AB - A comprehensive characterization of densities/apparent molar volumes for the aqueous solutions of magnesium chloride, calcium chloride and potassium iodide to high temperatures and pressures has been performed based on the Pitzer equations. The unusual availability of overlapping high quality independent sets of experimentally measured data for these systems allows the relevant thermodynamic quantities to be calculated with a high degree of confidence over wide ranges of conditions (<8molkg-1; 273-573K; 0.1-100MPa). A realistic assessment of experimental uncertainty indicates that an adequate description of volumetric behaviour is achieved by the standard Pitzer model without extensions. The experimental accuracy implied by differences between independent observers, however, is more than one order of magnitude worse than typically claimed estimates of experimental precision. © 2012 Elsevier B.V.
U2 - 10.1016/j.fluid.2012.10.021
DO - 10.1016/j.fluid.2012.10.021
M3 - Article
SN - 0378-3812
VL - 338
SP - 54
EP - 62
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
ER -