کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11000684 | 1426185 | 2019 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurements of the liquid-liquid coexistence curves of {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x pentadecane} and {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x heptadecane} in the critical region
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Measurements of the liquid-liquid coexistence curves of {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x pentadecane} and {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x heptadecane} in the critical region Measurements of the liquid-liquid coexistence curves of {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x pentadecane} and {(1â¯ââ¯x) dimethyl carbonateâ¯+â¯x heptadecane} in the critical region](/preview/png/11000684.png)
چکیده انگلیسی
The liquid-liquid coexistence curves in a temperature range of about 10â¯K from the upper consolute critical temperature for binary solutions of {dimethyl carbonateâ¯+â¯pentadecane} and {dimethyl carbonateâ¯+â¯heptadecane} have been precisely measured. The upper consolute mole fraction xc of n-alkane and the upper consolute temperature Tc were determined to be xcâ¯=â¯0.210, Tcâ¯=â¯312.234â¯K for {dimethyl carbonateâ¯+â¯pentadecane} and xcâ¯=â¯0.183, Tcâ¯=â¯320.496â¯K for {dimethyl carbonateâ¯+â¯heptadecane}, respectively. From the data collected in the near critical point, the critical exponent β was deduced and shown to be consistent well with its theoretical value for the 3-D Ising universality class. The dependences of critical properties on the chain length of n-alkane for a series of {dimethyl carbonateâ¯+â¯n-alkane} binary solutions were investigated. Furthermore, it was found that the asymmetric behaviors of the coexistence curve could be well described by the complete scaling theory. The contribution of the heat capacity related term to the asymmetric behaviors of the coexistence curves was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 128, January 2019, Pages 198-206
Journal: The Journal of Chemical Thermodynamics - Volume 128, January 2019, Pages 198-206
نویسندگان
Yimin Guo, Aiqin Shi, Zhiyun Chen, Weiguo Shen,