Comparative Analysis of Dielectric Constant and Loss Factor of Pure Butan-1-ol and Ethanol

The Debye relaxation equation and its derivatives were used to analyze the experimental permittivity data of high purity Butan-1-ol and Ethanol over the frequency up to 10GHz and temperature range of 10°C to 50°C. The plots of dielectric constant ���� ' and loss factor ���� '' against the frequency were found useful in determining how well experimental data fits the Debye equation and these methods were also found capable of reproducing good results for both coaxial cell (i.e. reflection and 14mm-transmission cell) and the results fitted using single-Debye, Debye-Г or double-Debye. The dielectric constant of Ethanol was found decreasing as the temperature increases beyond 10°C but that of Butan-1-ol showed an increase at temperature 20°C before decreasing as the temperature increased beyond 20°C. The loss factor on the other hand was found decreasing as the temperature increases for both Butan-1-ol and Ethanol. However, Butan-1-ol has the highest loss factors and the least dielectric constants as compared with Ethanol within the frequency and temperature range studied in this work.