Densities and Excess Molar Volumes of Binary Systems N,N-Dimethylformamide + Ethanolamine or N,N-Diethylethanolamine

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作者
Mónica Hernández-Mendoza
Abel Zúñiga-Moreno
María E. Manríquez-Ramírez
Octavio Elizalde-Solis
机构
[1] Instituto Politécnico Nacional,Departamento de Ingeniería Química Industrial, Laboratorio de Investigación en Fisicoquímica y Materiales, Escuela Superior de Ingeniería Química e Industrias Extractivas
[2] Instituto Politécnico Nacional,Sección de Estudios de Posgrado e Investigación, ESIQIE
[3] Instituto Politécnico Nacional,Departamento de Ingeniería Química Petrolera, ESIQIE
来源
关键词
Amides; Amines; ,; -dimethylformamide (DMF); ,; -diethylethanolamine (DEEA); Density; Ethanolamine (EA); Excess molar volume;
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摘要
Densities of binary mixtures composed by N,N-dimethylformamide (DMF) and ethanolamine (EA) or N,N-diethylethanolamine (DEEA) were studied. Measurements were made by means of a vibrating tube densimeter (VTD) at temperatures from 293.15 to 313.15 K at atmospheric pressure (73 kPa). Both binary systems were measured over the full range of compositions along with the pure compounds. Excess molar volumes were calculated from the experimental densities, and were fitted to a Redlich–Kister type equation. The excess molar volumes are positive for both systems. Partial molar volumes and partial excess volumes were obtained from the Redlich–Kister equation.
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页码:1981 / 1996
页数:15
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