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Citation:
Ma Pei-Sheng, Xia Shu-Qian, Wu Xiao-Xiang. The Experimental Determination and Correlation of Excess Enthalpies of Binary Systems of Cyclohexanone with Different Alcohols[J]. Acta Physico-Chimica Sinica,
;2002, 18(07): 644-648.
doi:
10.3866/PKU.WHXB20020716
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The excess enthalpies of five binary systems of cyclohexanone separately with ethanol,n-propanol,n-butanol,cyclopentanol and cyclohexanol were determined at four different temperatures,293.15,298.15,303.15 and 308.15 K by the MS-80 calorimeter. The experimental excess enthalpies data can all be correlated to smooth equations and the standard deviations were all very small. The coefficients of the correlation equations were offered. It is found that all the excess enthalpies data for all the systems are positive in the range of the experimental concentrations and reach their maximums when the concentrations of alcohols are about 50％. The excess enthalpies data of 2-butanone with alcohols published in previous paper just has the same regularity. The excess enthalpies data increase with the number of carbon atom. It is obvious that excess enthalpies were affected greatly by the mixing temperatures,and the higher the temperatures are, the more the excess enthalpies.
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