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Heat Capacities of Aqueous Solutions of Lithium Sulfate, Lithium Perchlorate, and Lithium Trifluoromethanesulfonate at 298.15 K
Hu, Bin1; Hnedkovsky, Lubomir2; Hefter, Glenn2
2016-06-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
Volume61Issue:6Pages:2149-2154
SubtypeArticle
AbstractIsobaric heat capacities of aqueous solutions of Li2SO4, LiClO4, and LiCF3SO3 have been measured at 298.15 K and 0.1 MPa up to high concentrations using a Picker flow calorimeter. Apparent molar isobaric heat capacities, C-p,C-phi, derived from these data were fitted within the limits of experimental precision with an extended Redlich-Rosenfeld-Meyer type of equation, which was also used to estimate the standard state (infinite dilution) quantities,. C-p,phi(o), for eadh salt. The latter values were combined with appropriate literature data to produce a robust estimate of C-p,phi(o) (Li+(aq)) = -3 +/- 2 J.K-1.mol(-1). Where comptison was possible, C-p,C-phi(LinX) values were closely parallel to those of the corresponding acids over the whole concentration range, even when the shapes of the curves were highly unusual. In contrast, C-p,C-phi(NanX) values always exhibited a crossover with the lithium salt data at a concentration of about 1 mol.kg(-1), which appears to reflect differences in the hydration of the two cations.
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS KeywordMOLAR VOLUMES ; SPECIATION ; CARBONATE ; WATER ; SALT
Indexed BySCI
Language英语
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000377841600022
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6327
Collection青海盐湖研究所知识仓储
盐湖资源与化学实验室
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
2.Murdoch Univ, Dept Chem, Murdoch, WA 6150, Australia
Recommended Citation
GB/T 7714
Hu, Bin,Hnedkovsky, Lubomir,Hefter, Glenn. Heat Capacities of Aqueous Solutions of Lithium Sulfate, Lithium Perchlorate, and Lithium Trifluoromethanesulfonate at 298.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2016,61(6):2149-2154.
APA Hu, Bin,Hnedkovsky, Lubomir,&Hefter, Glenn.(2016).Heat Capacities of Aqueous Solutions of Lithium Sulfate, Lithium Perchlorate, and Lithium Trifluoromethanesulfonate at 298.15 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,61(6),2149-2154.
MLA Hu, Bin,et al."Heat Capacities of Aqueous Solutions of Lithium Sulfate, Lithium Perchlorate, and Lithium Trifluoromethanesulfonate at 298.15 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 61.6(2016):2149-2154.
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