Solution thermodynamics near the liquid–liquid critical point. II. Excess second-order derivatives

We present a comprehensive study of the behaviour of excess second-order derivatives of binary mixtures near the liquid–liquid critical point. Specifically, excess (isobaric and isochoric) molar heat capacities (cE,x and c E V,x ), excess (isothermal and isentropic) compressibilities (� E T,x and � E S,x ), and excess isobaric thermal expansivities (˛