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A solution-reaction isoperibol calorimeter and standard molar enthalpies of formation of Ln(hq)(2)Ac (Ln = La, Pr)
Yu, HG; Liu, Y; Tan, ZC; Dong, JX; Zou, TJ; Huang, XM; Qu, SS
关键词Solution-reaction Isoperibol Calorimeter Enthalpy Of Solution Standard Molar Enthalpy Of Formation Coordination Compound Of Rare Earth 8-hydroxyquinoline Acetic Acid
刊名THERMOCHIMICA ACTA
2003-05-19
401期:2页:217-224
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical ; Chemistry, Physical
研究领域[WOS]Chemistry
英文摘要An on-line solution-reaction isoperibol calorimeter has been constructed. The performance of the apparatus was evaluated by measuring the molar enthalpy of solution of KCl in water at 298.15 K. The uncertainty and the inaccurary of the experimental results were within +/-0.3% compared with the recommended reference data. Using the calorimeter, the molar enthalpies of reaction for the following two reactions: LaCl(3)(.)7H(2)O(s)+2Hhq(s)+NaAc(s) = La(hq)(2)Ac(s)+NaCl(s)+2HCl(g)+7H(2)O(l) and PrCl(3)(.)6H(2)O(s)+2Hhq(s)+NaAc(s) = Pr(hq)(2)Ac(s)+NaCl(s)+2HCl(g)+6H(2)O(l), were determined at T = 298.15 K, as -(78.3 +/- 0.6) and -(97.3 +/- 0.5)kJ mol(-1), respectively. From the above molar enthalpies of reaction and other auxiliary thermodynamic quantities, the standard molar enthalpies of formation of La(hq)2Ac and Pr(hq)2Ac, at T = 298.15 K, have been derived to be -(1535.5 +/- 0.7) and -(1536.7 +/- 0.6) kJ mol(-1), respectively. (C) 2002 Elsevier Science B.V. All rights reserved.
语种英语
WOS记录号WOS:000183007300015
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被引频次:75[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138310
专题中国科学院大连化学物理研究所
作者单位1.Wuhan Univ, Dept Chem, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
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Yu, HG,Liu, Y,Tan, ZC,et al. A solution-reaction isoperibol calorimeter and standard molar enthalpies of formation of Ln(hq)(2)Ac (Ln = La, Pr)[J]. THERMOCHIMICA ACTA,2003,401(2):217-224.
APA Yu, HG.,Liu, Y.,Tan, ZC.,Dong, JX.,Zou, TJ.,...&Qu, SS.(2003).A solution-reaction isoperibol calorimeter and standard molar enthalpies of formation of Ln(hq)(2)Ac (Ln = La, Pr).THERMOCHIMICA ACTA,401(2),217-224.
MLA Yu, HG,et al."A solution-reaction isoperibol calorimeter and standard molar enthalpies of formation of Ln(hq)(2)Ac (Ln = La, Pr)".THERMOCHIMICA ACTA 401.2(2003):217-224.
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