TY - JOUR
T1 - Thermodynamic properties of ternary aqueous electrolyte solutions
AU - Grigore, Luminita
AU - Meghea, Aurelia
AU - Grigore, Ovidiu
AU - Martins, Rodrigo
PY - 1999
Y1 - 1999
N2 - In previous papers the mean excess chemical potential, μ1(E), in ternary systems of the type I sulphate + II sulphate + H2O, at 25°C was determined. Results obtained for systems with CuSO4(I), and ZnSO4(I) respectively, pointed out an obvious disparity between their behaviours. They show the existence of some important association phenomena partially accounting for the substantial deviations from ideal behaviour. The ternary sulphate systems (CuSO4 + Me(I,II)SO4 + H2O; ZnSO4 + Me(I,II)SO4 + H2O) studied were characterized against the binaries of the same ionic strength, experimental data being obtained using both e.m.f. and spectrophotometric methods. Deviations from the ideal behaviour were discussed in terms of thermodynamic excess functions and association constants. A comparative study between the results obtained with the two above mentioned methods is presented.
AB - In previous papers the mean excess chemical potential, μ1(E), in ternary systems of the type I sulphate + II sulphate + H2O, at 25°C was determined. Results obtained for systems with CuSO4(I), and ZnSO4(I) respectively, pointed out an obvious disparity between their behaviours. They show the existence of some important association phenomena partially accounting for the substantial deviations from ideal behaviour. The ternary sulphate systems (CuSO4 + Me(I,II)SO4 + H2O; ZnSO4 + Me(I,II)SO4 + H2O) studied were characterized against the binaries of the same ionic strength, experimental data being obtained using both e.m.f. and spectrophotometric methods. Deviations from the ideal behaviour were discussed in terms of thermodynamic excess functions and association constants. A comparative study between the results obtained with the two above mentioned methods is presented.
KW - Association constants
KW - E.m.f. method
KW - Spectrophotometry
KW - Ternary aqueous systems
UR - http://www.scopus.com/inward/record.url?scp=0033379283&partnerID=8YFLogxK
U2 - 10.1080/00319109908031445
DO - 10.1080/00319109908031445
M3 - Article
AN - SCOPUS:0033379283
VL - 37
SP - 409
EP - 428
JO - Physics and Chemistry of Liquids
JF - Physics and Chemistry of Liquids
SN - 0031-9104
IS - 4
ER -