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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
KeywordSolution-reaction Isoperibol Calorimeter Enthalpy Of Solution Standard Molar Enthalpy Of Formation Coordination Compound Of Rare Earth 8-hydroxyquinoline Acetic Acid
Source PublicationTHERMOCHIMICA ACTA
2003-05-19
Volume401Issue:2Pages:217-224
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS Research AreaChemistry
AbstractAn 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.
Language英语
WOS IDWOS:000183007300015
Citation statistics
Cited Times:76[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138310
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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.
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