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KMID : 1059519970410060284
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Journal of the Korean Chemical Society
1997 Volume.41 No. 6 p.284 ~ p.291
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Mixed Micellar Properties of Cetylpyridinium Chloride(CPC) with Triton X-100(TX-100) in Aqueous Solutions of n-Alcohols
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Chung Jong-Jae
Kim Yung-Cheol
Lee Byung-Hwan
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Abstract
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The critical micelle concentrations(CMC*) of a cationic surfactant cetylpyridinium chloride (CPC) and a nonionic surfactant triton X-100(TX-100) in aqueous solutions of n-alcohols(methanol, ethanol, 1-propanol, 1-butanol and 1-pentanol) were determined by UV spectroscopic method at 25 ℃. The various thermodynamic values in 0.1 M n-alcohols were calculated by means of the equation derived from the pseudo-phase separation model and compared with the values in the absence of n-alcohols. The results were a good agreement with the nonideal mixed micelle model, and they showed negative deviation from the ideal behavior.
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