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首页> 外文期刊>Journal of industrial and engineering chemistry >Solubility and partial molar volume of N,N-dimethylformamide diethyl acetal in supercritical carbon dioxide: Measurement and correlations
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Solubility and partial molar volume of N,N-dimethylformamide diethyl acetal in supercritical carbon dioxide: Measurement and correlations

机译：N，N-二甲基甲酰胺二乙缩醛在超临界二氧化碳中的溶解度和部分摩尔体积：测量和相关

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摘要

The solubilities of N,N-dimethylformamide diethyl acetal were measured at temperatures ranging from 313 to 353 K and pressures from 7.8 to 13.3 MPa in supercritical carbon dioxide. The measured solubility data were correlated using the Chrastil, Sung and Shim (SS), and Jouyban-Chan-Foster (JCF) semiempirical models. Consequently, the calculated results showed satisfactory agreement with experimental data and differed from the measured values by between 4.56 and 6.10%. The correlated results indicated that the JCF model provided the best fitness. Solubility data were also utilized to estimate the partial molar volume for the compound in the supercritical phase using the theory developed by Kumar and Johnston.
机译：N，N-二甲基甲酰胺二乙缩醛的溶解度是在超临界二氧化碳中，温度为313至353 K，压力为7.8至13.3 MPa。使用Chrastil，Sung和Shim（SS）和Jouyban-Chan-Foster（JCF）半经验模型对测得的溶解度数据进行关联。因此，计算结果与实验数据显示出令人满意的一致性，并且与测量值相差4.56％至6.10％。相关结果表明，JCF模型提供了最佳适应性。使用Kumar和Johnston开发的理论，还利用溶解度数据估算化合物在超临界相中的部分摩尔体积。

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