| Density of supercritical CO_2-tetrahydrofuran binary mixture and the partial molar volume of the cosolvent |
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| 作者姓名： | 许群 韩布兴 闫海科 |
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| 作者单位： | Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China |
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| 基金项目： | Project (No. 29633020) supported by the National Natural Sceience Foundation of China |
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| 摘 要： | The densities of supercritical CO2-tetrahydrofuran (cosolvent) binary mixture weremeasured at temperatures in range of 308.15 to 323.15 K and at pressure up to 16.5 MPa.The concentrations of tetrahydrofuran were from 0 to 0.57 mol/L.The partial molar volume of tetrahydrofuran was calculated based on the relationship between the density of the mixture and the concentration of the cosolvent.It is observed that the partial molar volume of the cosolvent is negative and the absolute value decreases with increasing pressure and the concentration of the cosolvent.
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Density of supercritical CO_2-tetrahydrofuran binary mixture and the partial molar volume of the cosolvent |
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| XU,Qun HAN,Bu-Xing YAN,Hai-KeInstitute of Chemistry,Chinese Academy of Sciences,Beijing ,China.Density of supercritical CO_2-tetrahydrofuran binary mixture and the partial molar volume of the cosolvent[J].Chinese Journal of Chemistry,1998,16(5):414-420. |
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| Authors: | XU Qun HAN Bu-Xing YAN Hai-KeInstitute of Chemistry Chinese Academy of Sciences Beijing China |
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| Institution: | XU,Qun HAN,Bu-Xing YAN,Hai-KeInstitute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | The densities of supercritical CO2-tetrahydrofuran (cosolvent) binary mixture weremeasured at temperatures in range of 308.15 to 323.15 K and at pressure up to 16.5 MPa.The concentrations of tetrahydrofuran were from 0 to 0.57 mol/L.The partial molar volume of tetrahydrofuran was calculated based on the relationship between the density of the mixture and the concentration of the cosolvent.It is observed that the partial molar volume of the cosolvent is negative and the absolute value decreases with increasing pressure and the concentration of the cosolvent. |
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| Keywords: | Supercritical fluid partial molar volume density carbon dioxide tetrahvdrofuran |
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