电导测定十二烷基苯磺酸钠的临界胶束浓度

CRITICAL MICELLE CONCENTRATION OF THE SOLUTION OF PELOPON A MEASURED BY ELECTRIC CODUCTANCE

本文用电导法测定了十二烷基本磺酸钠水溶液在25℃、32．5℃和40℃时的临界胶束浓度。并且用相分离模型计算了形成临界胶束时的标准焓变△Hθ、标准自由能变化△Gθ和标准熵变△Sθ。

critical micelle con centration (C.M.C) of Pelopon A[CH3(CH2)11C6H4SO4Na] at 25℃ . 32.5℃ and40℃ can be mear sured by electric conductance. The standard enthalpy change(△Hθ).gibbs free energy change (△Gθ) and entropy change (△Sθ) can be calculated from phase separation model