Standard enthalpy of formation of 3,4,5-trimethoxybenzoic acid |
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| Authors: | Yu H. G. Yu Dong J. X. Qin C. Q. Liu Y. Qu S. S. |
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| Affiliation: | (1) Department of Chemistry, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R., China;(2) Department of Chemistry, Xiaogan University, Xiaogan, 432100, P. R. China |
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| Abstract: | The energy of combustion of crystalline 3,4,5-trimethoxybenzoic acid in oxygen at T=298.15 K was determined to be -4795.9±1.3 kJ mol-1 using combustion calorimetry. The derived standard molar enthalpies of formation of 3,4,5-trimethoxybenzoic acid in crystalline and gaseous states at T=298.15 K, ΔfHm Θ (cr) and ΔfHm Θ (g), were -852.9±1.9 and -721.7±2.0 kJ mol-1, respectively. The reliability of the results obtained was commented upon and compared with literature values. This revised version was published online in August 2006 with corrections to the Cover Date. |
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| Keywords: | 3 standard enthalpy of formation combustion calorimetry 4 5-trimethoxybenzoic acid |
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