Apparent Molar Volumes and Expansibilities of Thiourea, 1,3-Dimethylurea, and 1,3-Dimethylthiourea in Water at Temperatures from T = (278.15 to 318.15) K and Atmospheric Pressure

被引：23

作者：

Ivanov, Evgeniy V. ^{[1
]}

Abrosimov, Vladimir K. ^{[1
]}

机构：

[1] Russian Acad Sci, Lab Thermodynam Solut Nonelectrolyte & Biol Act S, GA Krestov Inst Solut Chem, Ivanovo 153045, Russia

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2013年 / 58卷 / 05期

关键词：

NONIONIC ORGANIC SOLUTES; AQUEOUS-SOLUTIONS; HEAT-CAPACITIES; THERMODYNAMIC PROPERTIES; N-ALKYLUREAS; UREA; TETRAMETHYLUREA; COMPRESSIBILITY; DERIVATIVES; SOLVATION;

D O I：

10.1021/je301203z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Densities of dilute aqueous solutions of thiourea, 1,3-dimethylurea, and 1,3-dimethylthiourea were obtained using the Anton Paar DMA 5000 M vibrating-tube densimeter. The apparent molar volumes and expansibilities (down to infinite dilution) were computed from the measured density data. The experiments were performed at five temperatures from (278.15 to 318.15) K and atmospheric pressure. A comparison of volumetric and some other thermodynamic changes caused by the N,N'-methylation in thiourea and urea molecules are discussed.

引用

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页码：1103 / 1111

页数：9

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