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KMID : 1059519860300020159
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Journal of the Korean Chemical Society
1986 Volume.30 No. 2 p.159 ~ p.165
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The Effect of Substituent, Pressure and Temperature on the Dissociation Constants of Organic Acids. (3) Dissociation Constants of Some Alkyl Pyridines in Aqueous Solution
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Hwang Jung-Ui
Lee Jong-Eon
Jung Jae-Won
Chang Kyung-Hee
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Abstract
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The effects of substituents, pressure and temperature on the dissociation constants of alkylpyrines(2, 3 and 4-methyl and ethyl) were studied by measuring the dissociation constants of pyridines by conductance method at various temperatures and pressures in aqueous solution. The constants were increased as the temperature increase but decreased as pressure increase. From the constants various thermodynamic properties were calculated and discussed the dissociation reactions. It was estimated that alkylpyridines have exceptional dissociation reactions.
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