ICCAS OpenIR
Study on intermolecular interactions in supercritical fluids by partial molar volume and isothermal compressibility
Zhang, JL; Zhang, XG; Han, BX; He, J; Liu, ZM; Yang, GY
2002
Source PublicationJOURNAL OF SUPERCRITICAL FLUIDS
ISSN0896-8446
Volume22Issue:1Pages:15-19
AbstractThe apparent densities of H2O-CO2, H2S-CO2, H-2-CO2, and CH4-CO2 binary systems were determined at 308.15 K and different pressures. The concentration of the solutes was 0.3 mol%. The partial molar volumes (PMVs) of the solutes and isothermal compressibility of mixed fluids were calculated using the experimental data. The PMVs of the two polar solutes (H2O and H2S) in supercritical CO2 are negative, and a minimum can be observed in each PMV versus pressure curve at the pressure where isothermal compressibility of the fluid is largest. The absolute value of the minimum of H2O is smaller than that of H2S. probably because of the hydrogen bonding between water molecules. However, the PMVs of the two non-polar solutes are positive. and the maximum value of H, is larger than that of CH4. The effect of molecular size and polarity on the intermolecular interactions between solutes and solvents were discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
KeywordPartial Molar Volumes (Pmvs) Supercritical Fluids (Scfs) Isothermal Compressibility
Indexed BySCI
Language英语
WOS IDWOS:000173191300002
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78912
Collection中国科学院化学研究所
Corresponding AuthorHan, BX
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, JL,Zhang, XG,Han, BX,et al. Study on intermolecular interactions in supercritical fluids by partial molar volume and isothermal compressibility[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2002,22(1):15-19.
APA Zhang, JL,Zhang, XG,Han, BX,He, J,Liu, ZM,&Yang, GY.(2002).Study on intermolecular interactions in supercritical fluids by partial molar volume and isothermal compressibility.JOURNAL OF SUPERCRITICAL FLUIDS,22(1),15-19.
MLA Zhang, JL,et al."Study on intermolecular interactions in supercritical fluids by partial molar volume and isothermal compressibility".JOURNAL OF SUPERCRITICAL FLUIDS 22.1(2002):15-19.
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