| Calorimetric Studies of the Synergistic Effect: The Reaction of RE(TTA)_3 with N503 in Toluene |
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| 引用本文： | 王文清,杨桦. Calorimetric Studies of the Synergistic Effect: The Reaction of RE(TTA)_3 with N503 in Toluene[J]. 中国稀土学报(英文版), 1991, 0(1) |
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| 作者姓名： | 王文清 杨桦 |
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| 作者单位： | Department of Technical Physics Peking University，Beijing 100871，China，Department of Technical Physics，Peking University，Beijing 100871，China |
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| 基金项目： | This project was supported by the National Natural Science Foundation of China |
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| 摘 要： | Titration calorimetry has been used to study the thermodynamics of reaction in toluene solution of2-thenoyltriflueroacetone(TTA)complexes of rare earths(RE=Y,Nd,Eu,Yb)with N,Ndimethylheptyl-acetamide(N503)at 298.15 K.The heat of the reaction was determined with a TRONACModel 1250 automatic isoperibol calorimeter.The data and figures of titration curve were recorded by the com-puter automatically.An iterative technique of least-square analysis was used to calculate the equilibrium con-stants and the thermodynamic functions including the entropy and free energy changes,minimizing the errorsquare sum by a computer program.
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Calorimetric Studies of the Synergistic Effect: The Reaction of RE(TTA)_3 with N503 in Toluene |
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| Wang Wen-Qing Yang Hua. Calorimetric Studies of the Synergistic Effect: The Reaction of RE(TTA)_3 with N503 in Toluene[J]. Journal of Rare Earths, 1991, 0(1) |
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| Authors: | Wang Wen-Qing Yang Hua |
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| Abstract: | Titration calorimetry has been used to study the thermodynamics of reaction in toluene solution of 2-thenoyltriflueroacetone(TTA)complexes of rare earths(RE=Y,Nd,Eu,Yb)with N,N dimethylheptyl-acetamide(N503)at 298.15 K.The heat of the reaction was determined with a TRONAC Model 1250 automatic isoperibol calorimeter.The data and figures of titration curve were recorded by the com- puter automatically.An iterative technique of least-square analysis was used to calculate the equilibrium con- stants and the thermodynamic functions including the entropy and free energy changes,minimizing the error square sum by a computer program. |
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| Keywords: | Titration calorimetry Synergistics effect RE(TTA)_3 |
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