Thermophysical Properties of 1-Propyronitrile-3-alkylimidazolium Bromide Ionic Liquids at Temperatures from (293.15 to 353.15) K

• Main Authors: C.D., Wilfred, Murugesan, Thanapalan, Ziyada, Abu Bakr, Bustam, Mohamad Azmi
• Format: Article
• Published: American Chemical Society 2010
• Subjects: QD Chemistry
• Online Access: http://eprints.utp.edu.my/7826/1/C_Documents_and_SettingsCEC...IE5XZSE9UMOje901050v%5B1%5D.pdf.pdf; http://eprints.utp.edu.my/7826/
• Institution: Universiti Teknologi Petronas

In the present work, a series of 1-propyronitrile-3-alkylimidazolium bromide ionic liquids ([C2CN Cnim]Br, where n ) 4, 6, 8, and 10) were synthesized and characterized using Fourier transform infrared spectroscopy (FTIR), NMR, and elemental analysis. Physical properties such as density, viscosity, and refractive index are measured and reported for a temperature range of (293.15 to 353.15) K and at atmospheric pressure. The influence of the alkyl chain on these properties is discussed. The present synthesized ionic liquids show a weak temperature dependency on the thermal expansion coefficient.