Ion association of persulphates in water and water+acetone mixtures

Conductometric studies have been made for the persulphates of sodium, potassium, and ammonium in water and water+acetone (Xacetone=0.016, 0.033, 0.072, 0.117 and 0.171) mixtures at 298.15, 303.15, 308.15 and 313.15 K, using Shedlovsky and Fuoss–Kraus extrapolation techniques. The limiting molar conductance (Λo), association constant (KA), Walden product (Λoηo) and the thermodynamic functions for the process of ion-pair formation have been evaluated and discussed.