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Enthalpy of dissolution of the complex Zn(Leu)SO4 center dot 1/2H(2)O(s)
Di, YY; Tan, ZC; Gao, SL
刊名INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
2005-11-01
44期:11页:2274-2278
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]STANDARD MOLAR ENTHALPY ; TEMPERATURE HEAT-CAPACITY ; CALORIMETER
英文摘要Molar enthalpies of dissolution of [ZnSO(4)(.)7H(2)O (s) and Leu (s)] mixture [h (ZnSO(4)(.)7H(2)O) : n (Leu) = 1 : 1] and the complex Zn(Leu)SO4.1/2H(2)O (S) in 100 cm 3 of 2 mol(.)dm(-1) HCl at (298.15 +/- 0.001) K have been determined to be Delta(d)H(m.l)(0) = -(84.943 +/- Molar enthalpies of dissolution of [ZnSO(4)(.)7H(2)O (s) and Leu (s)] mixture [n (ZnSO(4)(.)7H(2)O) : n (Leu) = 1 : 1] and the complex Zn(Leu)SO(4)(.)1/2H(2)O (S) in 100 cm 3 of 2 mol(.)dm(-3) HCl at (298.15 +/- 0.001) K have been determined to be Delta(d)H(m.l)(0) = -(84.943 +/- 0.090) kJ(.)mol(-1) and Delta(d)H(m.3)(0) = (55.967 +/- 0.060) kJ(.)mol(-1), respectively, using an isoperibol solution-reaction calorimeter. The standard molar enthalpy of formation of the complex Zn(Leu)SO(4)(.)1/2H(2)O(s) has been found to be Delta(f)H(m)(0) [Zn(Leu)SO4.1/2H(2)O, s, 298.15 K] =-(1998.155 +/- 0.965) J(.)mol(-1), on the basis of experimental values of enthalpies of dissolution with some auxiliary thermodynamic data through a designed Hess thermochernical cycle. The constant-volume combustion energy of the complex Zn(Leu)SO(4)(.)1/2H(2)O (s) has been measured to be Delta(c)E/J(.)g(-1) =-(9971.85 +/- 11.27) by a precision rotating bomb combustion calorimeter at 298.15 K. The standard molar enthalpy of combustion and formation of the compound have been calculated to be Delta(c)H(m)(0) =-(3007.889 +/- 3.399) kJ(.)mol(-1) and Delta(f)H(m)(0) [Zn(Leu)(SO4H2O)-H-., s] =-(2001.251 +/- 3.503) J(.)mol(-1). The relative deviation of results obtained from the two calorimetric methods agree with each other and is within +/- 0.2%.
语种英语
WOS记录号WOS:000233473100015
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139861
专题中国科学院大连化学物理研究所
作者单位1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong Prov, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
3.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China
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Di, YY,Tan, ZC,Gao, SL. Enthalpy of dissolution of the complex Zn(Leu)SO4 center dot 1/2H(2)O(s)[J]. INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY,2005,44(11):2274-2278.
APA Di, YY,Tan, ZC,&Gao, SL.(2005).Enthalpy of dissolution of the complex Zn(Leu)SO4 center dot 1/2H(2)O(s).INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY,44(11),2274-2278.
MLA Di, YY,et al."Enthalpy of dissolution of the complex Zn(Leu)SO4 center dot 1/2H(2)O(s)".INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY 44.11(2005):2274-2278.
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