| Thermodynamic properties of vapor complex Na2ZrCl6 |
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| 引用本文： | 李军丽,于锦,杨冬梅,王之昌. Thermodynamic properties of vapor complex Na2ZrCl6[J]. 中国有色金属学会会刊, 2007, 17(2): 439-442. DOI: 10.1016/S1003-6326(07)60112-5 |
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| 作者姓名： | 李军丽 于锦 杨冬梅 王之昌 |
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| 作者单位： | School of Sciences Northeastern University，School of Sciences Northeastern University，School of Sciences Northeastern University，School of Sciences Northeastern University，Shenyang 110004 China，Shenyang 110004 China School of Sciences Shenyang University of Technology Shenyang 110023 China，Shenyang 110004 China，Shenyang 110004 China |
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| 摘 要： | Thermodynamic studies were carried out for the vapor complex of sodium chloride with zirconium tetrachloride at 718-778 K and 0.5-2.5 kPa by using high temperature phase equilibrium-quenching experiments, taking closed Pyrex glass ampoules as the reaction containers. The results show that the sole predominant vapor complex is Na_2ZrCl_6 for the ZrCl4-NaCl system under the experimental conditions. The thermodynamic equilibrium constants and other thermodynamic functions of the reaction 2NaCl(s)+ZrCl4(g)=Na_2ZrCl_6(g) have been derived from the measurements. The results for the changes in enthalpy and entropy are △H0=(-70.1±1.5) kJ/mol and △S0=(-105.9±2.0) J/(mol·K) in the temperature range.
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| 关 键 词： | 气态配合物 Na2ZrCl6 热力学性质 相平衡 |
| 收稿时间： | 2006-09-07 |
| 修稿时间： | 2006-12-20 |
Thermodynamic properties of vapor complex Na2ZrCl6 |
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| LI Jun-li,YU Jin,YANG Dong-mei,WANG Zhi-chang. Thermodynamic properties of vapor complex Na2ZrCl6[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(2): 439-442. DOI: 10.1016/S1003-6326(07)60112-5 |
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| Authors: | LI Jun-li YU Jin YANG Dong-mei WANG Zhi-chang |
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| Affiliation: | 1. School of Sciences, Northeastern University, Shenyang 110004, China;2. School of Sciences, Shenyang University of Technology, Shenyang 110023, China |
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| Abstract: | Thermodynamic studies were carried out for the vapor complex of sodium chloride with zirconium tetrachloride at 718–778 K and 0.5–2.5 kPa by using high temperature phase equilibrium-quenching experiments, taking closed Pyrex glass ampoules as the reaction containers. The results show that the sole predominant vapor complex is Na2ZrCl6 for the ZrCl4-NaCl system under the experimental conditions. The thermodynamic equilibrium constants and other thermodynamic functions of the reaction 2NaCl(s)+ZrCl4(g)=Na2ZrCl6(g) have been derived from the measurements. The results for the changes in enthalpy and entropy are ΔH0=(−70.1±1.5) kJ/mol and ΔS0=(−105.9±2.0) J/(mol·K) in the temperature range. |
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| Keywords: | ZrCl4 NaCl Na2ZrCl6 vapor complex phase equilibrium-quenching experiment |
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