Energetics of thiophenecarboxaldehydes and some of its alkyl derivatives

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• 作者：Manuel A.V. Ribeiro da Silva ; Ana Filipa L.O.M. Santos
• 关键词：Enthalpy of combustion ; Enthalpy of vaporization ; Enthalpy of formation ; 2-Thiophenecarboxaldehyde ; 3-Thiophenecarboxaldehyde ; 3-Methyl-2-thiophenecarboxaldehyde ; 5-Methyl-2-thiophenecarboxaldehyde ; 5-Ethyl-2-thiophenecarboxaldehyde
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2008
• 出版时间：June 2008
• 年：2008
• 卷：40
• 期：6
• 页码：917-923
• 全文大小：164 K

文摘

The standard (p = 0.1 MPa) molar enthalpies of combustion, che/MiamiImageURL/B6WHM-4RWH8DG-3-K/0?wchp=dGLbVzW-zSkWA"" alt=""View the MathML source"" title=""View the MathML source"" align=""absbottom"" border=""0"" height=16 width=""41""/>, for the liquids 2-thiophenecarboxaldehyde, 3-thiophenecarboxaldehyde, 3-methyl-2-thiophenecarboxaldehyde, 5-methyl-2-thiophenecarboxaldehyde, and 5-ethyl-2-thiophenecarboxaldehyde were determined, at the temperature of 298.15 K, using a rotating-bomb combustion calorimeter. For these five compounds, the standard molar enthalpies of vaporization, che/MiamiImageURL/B6WHM-4RWH8DG-3-M/0?wchp=dGLbVzW-zSkWA"" alt=""View the MathML source"" title=""View the MathML source"" align=""absbottom"" border=""0"" height=19 width=""41""/>, at T = 298.15 K were obtained by high temperature Calvet microcalorimetry.