Abstract

R.C. Chautmal¹ and T.J. Patil²

Clouding behavior of non-ionic surfactant have been worked out in presence of Myo-ionositol in order to study the molecular interactions of additive on non-ionic surfactant.Tween-40 have been selected as surfactant while Myoi-inositol as an additive. Clouding of Tween-40 has been studied as a pure and in presence of additive at various concentrations. It has been found that below 0.1 Wt % of myo-inositol did not show marked effect on CP of surfactant.Considering CP as threshold temperature of solubility, the thermodynamic parameter of solubilization of pure surfactant and surfactant additive system has been evaluated. From this study, the process of clouding is guided by both enthalpy and entropy and overall process is exothermic.

Tween-40 (TW-40); Myo-inositol; Cloud point; Phase Separation Model.

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