Abstract
A pycknometer and a rotational viscometer were used to measure the density and viscosity respectively of pure palm oil and various concentrations of adulterated palm oil at 313 K. From the measured values of density and viscosity, activation energy changes arising from various concentrations of impurity in palm oil were calculated. The activation energy change of palm oil increased linearly as the concentration of impurity in palm oil increased. This most probably is due to the increase in intermolecular attractive force between the impurity and palm oil molecules. Due to the linear relationship between the impurity concentration and the activation energy change of palm oil, a simple mathematical expression was developed for the identification of an adulterated palm oil. Keywords: Activation energy change, Adulteration, Concentration, Impurity, Palm oil, Turkey oil
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