Interfacial tension estimation in organic/aqueous system

Linear solvation energy relationships are used to estimate the interfacial tension at solvent/water interfaces for systems containing ''dry'' and ''wet'' solvents. The correlation analysis works also in the systems containing Primene 81R and metal salts. The models gamma degrees = a - b(1) log x(s,w) - b(2) log x(w,s) and gamma degrees = a-b log (S-s,S-w + X(w,s)) give good estimation of the interfacial tension. Tn the systems containing Primene 81R the surface pressure is correlated with solvent parameters according to relation gamma degrees - gamma = a + b pi* + c beta