Solubilities of carbon dioxide and nitrous oxide in cyclohexanone, toluene, and N,N-dimethylformamide at elevated pressures

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je00020a025· OSTI ID:94343

Chang, C J; Chen, C Y ^[1]; Lin, H C ^[2]

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1. National Chung-Hsing Univ., Taichung (Taiwan, Province of China)
2. Yuan-Ze Inst. of Tech., Taoyuan (Taiwan, Province of China). Dept. of Chemical Engineering

The phase behavior of compressed gases in low-volatile solvents has received wide attention in recent years for potential applications in supercritical fluid extraction. The solubilities of carbon dioxide and nitrous oxide in three liquid solvents were measured under static phase equilibrium conditions at temperatures of 290.8, 300.9, and 310.1 K and pressures up to 12.34 MPa. The solubility data were determined from the liquid phase density obtained from an Anton-Paar densitometer, and the level of liquid phase expanded by supercritical and subcritical gases. The solubility of N{sub 2}O in each solvent increased with pressure, but decreased with temperature, and in each case, was greater than that of CO{sub 2}. Both CO{sub 2} and N{sub 2}O showed the highest solubility in cyclohexanone and the least solubility in N,N-dimethylformamide.

• Sponsoring Organization: USDOE
• OSTI ID: 94343
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 4 Vol. 40; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
AMIDES
CARBON DIOXIDE
CYCLOHEXANONE
EXPERIMENTAL DATA
NITROUS OXIDE
PRESSURE DEPENDENCE
SOLUBILITY
SOLVENT PROPERTIES
SUPERCRITICAL GAS EXTRACTION
TEMPERATURE DEPENDENCE
TOLUENE