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A solution-reaction isoperibol calorimeter and standard molar enthalpies of formation of Ln(hq)(2)Ac (Ln = La, Pr)

文献类型:期刊论文

作者Yu, HG; Liu, Y; Tan, ZC; Dong, JX; Zou, TJ; Huang, XM; Qu, SS
刊名thermochimica acta
出版日期2003-05-19
卷号401期号:2页码:217-224
关键词solution-reaction isoperibol calorimeter enthalpy of solution standard molar enthalpy of formation coordination compound of rare earth 8-hydroxyquinoline acetic acid
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.
WOS标题词science & technology ; physical sciences
类目[WOS]chemistry, analytical ; chemistry, physical
研究领域[WOS]chemistry
收录类别SCI
语种英语
WOS记录号WOS:000183007300015
公开日期2015-11-10
源URL[http://159.226.238.44/handle/321008/138310]  
专题大连化学物理研究所_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
推荐引用方式
GB/T 7714
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.

入库方式: OAI收割

来源:大连化学物理研究所

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