High-pressure measurements of the viscosity and density of two polyethers and two dialkyl carbonates

被引:146
作者
Comuñas, MJP
Baylaucq, A
Boned, C
Fernández, J
机构
[1] Univ Santiago, Lab Propiedades Termofis, Dept Fis Aplicada, Fac Fis, E-15706 Santiago De Compostela, Spain
[2] Fac Sci, Lab Fluides Complexes, F-64013 Pau, France
关键词
density; dialkyl carbonates; high pressure; internal pressure; isobaric thermal expansion coefficients; isothermal compressibilities; polyethylene glycol dimethyl ethers; viscosity;
D O I
10.1023/A:1010770831215
中图分类号
O414.1 [热力学];
学科分类号
摘要
The viscosity and density of four pure liquid compounds (dimethyl carbonate, diethyl carbonate, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether) were measured at several temperatures between 283.15 and 353.15 K. The density measurements were performed up to 60 MPa with an uncertainty of 1 X 10(-4) g.cm(-3). The viscosity at atmospheric pressure was measured with an Ubbelohde-type glass capillary tube viscometer with an uncertainty of +/-1 %. At pressures up to 100 MPa the viscosity was determined with a falling ball viscometer with an uncertainty of +/-2 %. The density (410 experimental values) and viscosity data (184 experimental values) were fitted to several correlation equations.
引用
收藏
页码:749 / 768
页数:20
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