Excess enthalpies and excess volumes of (2-methoxyethanol + 1,4-dioxane) and (1,2-dimethoxyethane + benzene) at temperatures between 283.15 K and 313.15 K |
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| Affiliation: | 1. School of High-technology for Human Welfare, Tokai University, Numazu, 803-102 Hiranuma, Shizuoka 410-0321, Japan;2. Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan;1. Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People’s Republic of China;2. Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China;3. Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People’s Republic of China;4. Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, People’s Republic of China;1. Food and Drug Safety Research, Tabriz University of Medical Sciences, Tabriz, Iran;2. Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran;3. Engineering Faculty, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey;4. Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran;1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai 201620, China;2. Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China |
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| Abstract: | The measurement of excess enthalpies, HE, at T=298.15 K and densities at temperatures between 283.15 K and 313.15 K are reported for the (2-methoxyethanol + 1,4-dioxane) and (1,2-dimethoxyethane + benzene) systems. The values of HE and the excess volumes, VE, are positive, and the temperature dependence of VE is quite small for (2-methoxyethanol + 1,4-dioxane). The (1,2-dimethoxyethane + benzene) system shows a negative HE and sigmoid curves in VE, which change sign from positive to negative with an increase in 1,2-dimethoxyethane. The temperature dependence of VE for this system is negative. |
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