کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4410866 1307567 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of the dependence of aqueous solubility of nitro compounds on temperature and salinity: A COSMO-RS simulation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Evaluation of the dependence of aqueous solubility of nitro compounds on temperature and salinity: A COSMO-RS simulation
چکیده انگلیسی

The solubility in pure and saline water at various temperatures was calculated for selected nitro compounds (nitrobenzene, 1,3,5-trinitrobenzene, 2-nitrotoluene, 3-nitrotoluene, 4-nitrotoluene, 2,4-dinitrotoluene, 2,6-dinitrotoluene, 2,3-dinitrotoluene, 3,4-dinitrotoluene, 2,4,6-trinitrotoluene) using the Conductor-like Screening model for Real Solvents (COSMO-RS). The results obtained were compared with experimental values. The COSMO-RS predictions have shown high accuracy in reproducing the trends of aqueous solubilities for both temperature and salinity. The proposed methodology was then applied to predict the aqueous solubilities of 19 nitro compounds in the temperature range of 5–50 °C in saline solutions. The salting-out parameters of the Setschenow equation were also calculated. The predicted salting-out parameters were overestimated when compared to the measured values, but these parameters can still be used for qualitative estimation of the trends.

Research highlights
► A COSMO-RS based model for prediction of solubility of nitro compounds in pure and saline water at various temperatures is proposed.
► The model has shown high accuracy in reproducing the trends of aqueous solubilities for both temperature and salinity.
► The aqueous solubilities of nineteen nitro compounds with unknown experimental were predicted in the temperature range of 5–50 °C in saline solutions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 83, Issue 3, April 2011, Pages 287–294
نویسندگان
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