An Investigation of the Dissolution of Acetylsalicylic Acid in Supercritical Carbon Dioxide

被引：0
|
作者：
Antonov, E. N. [1 ]
Dunaev, A. G. [1 ]
Popov, V. K. [1 ]
机构：
[1] Russian Acad Sci, Inst Problems Laser & Informat Technol, Moscow, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2016年 / 10卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
acetylsalicylic acid; supercritical carbon dioxide; IR Fourier spectroscopy; solubility; SOLUBILITY; ASPIRIN; MIXTURES;
D O I：
10.1134/S1990793116080030
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The dissolution of acetylsalicylic acid in supercritical carbon dioxide (SC-CO2) is investigated using Fourier transform IR spectroscopy. Temporal dependences of integrated intensities of the absorption band of acetylsalicylic acid (ASA) near 1199 cm(-1) are measured for various ASA charges placed into a cuvette. Molar fractions of ASA in the saturated solution in SC-CO2 are determined at a temperature of 40 degrees C and pressures of 10.0 and 15.0 MPa, and the components are 2.10 +/- 0.25 x 10(-4) and 11.0 +/- 1.5 x 10(-4), respectively.
引用
收藏
页码：1191 / 1194
页数：4
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