The compressed graphite was obtained from natural graphite powder of two different
conditions: with and without ultrasonic treatment. The conductivity of the samples was measured by two
probe technique. Effect of the sample temperature on its conductivity was also reported as the
temperature could affect the bulk density and its electrical conductivity. The optical property of the
graphite suspension was characterized using UV-Vis spectroscopy. Morphology of the graphite was
investigated by scanning electron microscopy (SEM).