Density, Viscosity and Conductivity Study of 1-Butyl-3-Methylimidazolium Bromide

1-Butyl-3-methylimidazolium bromide [BMIm][Br], was synthesized and characterized. Density and viscosity measurement were carried out at room temperature. Density measurement decreased monotonically while viscosity measurement decreased with increase in temperature. Conductivity measurement of the ionic liquid and mixtures of the ionic liquid with water, methanol, ethanol, acetonitrile and acetone at different temperature showed increase in conductivity due to the presence of the ionic liquid in water and ethanol, and decrease in other cosolvents. Conductivity measurement of the ionic liquid and mixture of the ionic liquid in various cosolvents at different concentrations shows increase in conductivity with increase in concentration. The thermogravimetric analysis, (TGA), of the ionic liquid shows high thermal stability of the ionic liquid with decomposition beginning at about 400 degrees C.