Solubility of p-Methylbenzene Sulfonic Acid in Pure and Modified Supercritical Carbon Dioxide

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• 作者：Ze-ting Zhang ; Wen-ming Li ; Jun-su Jin ; Guo-hua Tian
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2008
• 出版时间：February 2008
• 年：2008
• 卷：53
• 期：2
• 页码：600 - 602
• 全文大小：70K
• 年卷期：v.53,no.2(February 2008)
• ISSN：1520-5134

文摘

The solubilities of p-methylbenzene sulfonic acid in supercritical carbon dioxide were determined at (308, 318, and 328) K and in the pressure range from (8 to 21) MPa. The effects of cosolvents (ethyl acetate, ethyl acetate + ethanol (molar ratio 1:1), ethanol, and acetone) on the solubility of p-methylbenzene sulfonic acid were studied at a concentration of 1.5 mol %. The measured solubilities in supercritical carbon dioxide in the absence and presence of cosolvents were correlated using the Chrastil and modified Chrastil equation with good results, respectively.