کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
675459 | 1459619 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enthalpies of solution of tetramethyl-bis-urea (Mebicarum) in amides and acetone at 298.15 K
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enthalpies of solution of tetramethyl-bis-urea (Mebicarum) in amides and acetone at 298.15 K Enthalpies of solution of tetramethyl-bis-urea (Mebicarum) in amides and acetone at 298.15 K](/preview/png/675459.png)
چکیده انگلیسی
The enthalpies of solution of 2,4,6,8-tetramethyl-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione or tetramethyl-bis-urea (the drug Mebicarum) in formamide, N-methylformamide, N,N-dimethylformamide, N,N-dimethylacetamide, N,N,N′,N′-tetramethylurea, and acetone were measured at 298.15 K. Standard enthalpies of solution and transfer from one solvent to another were computed. The enthalpies of solution of the solute were found to be endothermic and weak depending on the nature of methylation in an amide molecule. It was concluded that the solvent proton-donor ability and existing steric hindrances for H-bonding and other interparticle interactions play the key role in solvation of tetramethyl-bis-urea.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 463, Issues 1–2, 25 October 2007, Pages 27–31
Journal: Thermochimica Acta - Volume 463, Issues 1–2, 25 October 2007, Pages 27–31
نویسندگان
Evgeniy V. Ivanov, Vladimir K. Abrosimov, Valeriy I. Smirnov,