ICCAS OpenIR
Phase equilibria of supercritical CO2 ethanol stearic acid ternary system and hydrogen bonding between ethanol and stearic acid
Guan, B; Lu, J; Han, BX; Yan, HK
1998-08-01
Source PublicationSCIENCE IN CHINA SERIES B-CHEMISTRY
ISSN1006-9291
Volume41Issue:4Pages:410-417
AbstractSolubility of stearic acid in supercritical CO2 with ethanol cosolvent was determined at 308.15 K in the pressure range from 8 to 16 MPa, and the cosolvent concentration ranges from 0 mol% to 4 mol%. The corresponding densities of the fluid phases were also measured. It was observed that ethanol enhances the solubility significantly. The solubility increases with pressure noticeably at lower pressure, especially at lower cosolvent concentrations. The effect of pressure on the solubility is very limited at higher pressures or higher cosolvent concentrations. The hydrogen bending between ethanol and stearic acid in supercritical CO2 was also studied using FTIR in order to understand the mechanism of the solubility enhancement by ethanol.
KeywordPhase Equilibria Supercritical Co2 Stearic Acid Ethanol Hydrogen Bonding
Indexed BySCI
Language英语
WOS IDWOS:000075346800010
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74770
Collection中国科学院化学研究所
Corresponding AuthorHan, BX
AffiliationAcad Sinica, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Guan, B,Lu, J,Han, BX,et al. Phase equilibria of supercritical CO2 ethanol stearic acid ternary system and hydrogen bonding between ethanol and stearic acid[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,1998,41(4):410-417.
APA Guan, B,Lu, J,Han, BX,&Yan, HK.(1998).Phase equilibria of supercritical CO2 ethanol stearic acid ternary system and hydrogen bonding between ethanol and stearic acid.SCIENCE IN CHINA SERIES B-CHEMISTRY,41(4),410-417.
MLA Guan, B,et al."Phase equilibria of supercritical CO2 ethanol stearic acid ternary system and hydrogen bonding between ethanol and stearic acid".SCIENCE IN CHINA SERIES B-CHEMISTRY 41.4(1998):410-417.
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