DENSITY-DEPENDENCE OF THE MOLAR ABSORPTION-COEFFICIENT - APPLICATION OF THE BEER-LAMBERT LAW TO SUPERCRITICAL CO2-NAPHTHALENE MIXTURE

被引:25
作者
INOMATA, H [1 ]
YAGI, Y [1 ]
SAITO, M [1 ]
SAITO, S [1 ]
机构
[1] TOHOKU UNIV,FAC ENGN,DEPT MOLEC CHEM & ENGN,SENDAI,MIYAGI 980,JAPAN
关键词
CO2; SUPERCRITICAL FLUID; NAPHTHALENE; BEER-LAMBERT; MOLAR ABSORPTION COEFFICIENT;
D O I
10.1016/0896-8446(93)90033-T
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Infrared absorption spectra of naphthalene in supercritical carbon dioxide (CO2) solutions of various concentrations were measured at 318.15 K at various pressures. The molar absorption coefficient of naphthalene in supercritical CO2 Was found to be dependent on the density Of CO2. As die density Of CO2 increased, a red shift of peak wavenumber of the C-C vibration (quadrant stretching) were observed. This suggests that the molecular vibration of naphthalene in supercritical CO2 was affected by the fluid density.
引用
收藏
页码:237 / 240
页数:4
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