Thermodynamics of microemulsion on the nonionic microemulsion Ⅲ e- ffects of brine and PH

Abstract

The free energies of transfer were calculated for alcohol cosurfactant between oil and interfacial phases in Triton X 100-hexadecane-brine(aq. NaCl, BaCl2, or LaCl3)-hexanol systems. The entropies and heats of transfer were calculated from the corresponding free energies. Linear relations are found between the thermodn. parameters and the brine cation valence and pH. These results are used to discuss microemulsion structure and stability.

Key words: ETHANOL, THERMODYNAMIC PROPERTIES, THERMODYNAMIC FUNCTION, NON IONIC SURFACTANTS, HIGHER ALKANE, EMULSIFYING LIQUID, PH VALUE

CLC Number:

O647
TQ423

Cite this article

HAO CE;BI YANSHU;SUN ZHIGANG;CHEN ZONGQI. Thermodynamics of microemulsion on the nonionic microemulsion Ⅲ e- ffects of brine and PH[J]. Acta Chimica Sinica, 1993, 51(1): 1-6.

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非离子型微乳液的热力学性质Ⅲ:盐类和PH值的影响