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ժҪ ��ò�ʾɨ��ȷ��ⶨ��ڱ��䱽��ӡ��ڱ��Ա��ӡ��䱽��Ա��Ӷ�Ԫ��Һƽ��,ͬʱ��Ƴ��Ӧ�ļ򵥵͹��Ͷ�Ԫ��ͼ��͹��ɺ��¶�Ϊ:�ڱ��(1)+�䱽��(2),x1=0 5077,336 3K;�ڱ��(1)+�Ա��(3),x1=0 7879,365 8K;�Ա��(3)+�䱽��(2),x3=0 2305,366 1K��Wilson��̹��,��׼ƫ��ֱ�Ϊ0 48K,0 48K��0 56K��

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Abstract�� Solid-liquid equilibrium data for binary mixtures of pyrocatechol with resorcinol,pyrocatechol with hydroquinone and hydroquinone with resorcinol were determined by differential scanning calorimetry and their corresponding eutectic type phase diagrams were presented respectively. The eutectics are x _1=(0.507 7) at T =336.3K in pyrocatechol(1)+resorcinol (2); x _1=(0.787 9), T =365.8K in pyrocatechol(1)+hydroquinone (3); x_3 =(0.230 5), T =366.1K in hydroquinone (3)+resorcinol(2).The data were fitted by Wilson formula with standard deviations 0.48K,0.48K and 0.56K,respectively.

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Received 2004-05-15; published 2004-05-15

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κ��,���,��.��-��-�Ա��ӹ�Һƽ��ⶨ��[J]. ��ѧ��ҵ�빤��, 2004,21(3): 227-230

WEI Dong-wei~1,LI Fu-sheng~1,ZHANG Wen-xiang~2 .Determination of Solid-Liquid Equilibria Data of Dihydroxyphenols[J]. Chemcial Industry and Engineering, 2004,21(3): 227-230