title: Tetrabutylammonium bromide (TBABr)-based deep eutectic solvents (DESs) and their physical properties.
abstract: Density, viscosity and ionic conductivity data sets of deep eutectic solvents (DESs) formed by tetrabutylammonium bromide (TBABr) paired with ethlyene glycol, 1,3-propanediol, 1,5-pentanediol and glycerol hydrogen bond donors (HBDs) are reported. The properties of DES were measured at temperatures between 303 K and 333 K for HBD percentages of 66.7% to 90%. The effects of HBDs under different temperature and percentages are systematically analyzed. As expected, the measured density and viscosity of the studied DESs decreased with an increase in temperature, while ionic conductivity increases with temperature. In general, DESs made of TBABr and glycerol showed the highest density and viscosity and the lowest ionic conductivity when compared to other DESs. The presence of an extra hydroxyl group on glycerol in a DES affected the properties of the DES.
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang,Selangor, Malaysia. rizanayusof@gmail.com.
authors.forename: Rizana
authors.initials: R
authors.lastname: Yusof
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang,Selangor, Malaysia. emilia@upm.edu.my.
authors.forename: Emilia
authors.initials: E
authors.lastname: Abdulmalek
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang,Selangor, Malaysia. kamaliah@upm.edu.my.
authors.forename: Kamaliah
authors.initials: K
authors.lastname: Sirat
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang,Selangor, Malaysia. basya@upm.edu.my.
authors.forename: Mohd Basyaruddin Abdul
authors.initials: MB
authors.lastname: Rahman
mesh_terms: D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*; D014783:Viscosity
chemical_list: D000644:Quaternary Ammonium Compounds; D012997:Solvents; C009405:tetrabutylammonium