Solubility of gallic acid in binary mixtures of ethanol + water at various temperatures

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Journal of Beijing University of Chemical Technology ›› 2013, Vol. 40 ›› Issue (5) : 17-21.

化学与化学工程

LI QunSheng¹;LU FengHua¹;TIAN YuanMing^{1, 2};SHEN Yang¹;GUO Fan¹;WANG BaoHua³

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The solubility of gallic acid in binary mixtures of ethanol+water was determined at (283 to 323) K and atmospheric pressure using a dynamic method. The modified Apelblat equation and Jouyban-Acree model were used to correlate the solubility data, with the overall relative average deviation (RAD) values of 0.63% and 10.84%, respectively. The modified Apelblat equation thus shows the best agreement with experimental data. The solubility of gallic acid in binary mixtures increases with increasing temperature and mass fraction of ethanol in the mixed solvent and the maximum solubility of gallic acid can be reached with the mass fraction of ethanol 0.900.

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LI QunSheng¹;LU FengHua¹;TIAN YuanMing^{1, 2};SHEN Yang¹;GUO Fan¹;WANG BaoHua³. Solubility of gallic acid in binary mixtures of ethanol + water at various temperatures[J]. Journal of Beijing University of Chemical Technology, 2013, 40(5): 17-21

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Received	Revised	Published
2013-01-25	1900-01-01	2013-09-20
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2013-09-20

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