Comparison of rapeseed oil density with nigella oil before and after heating

Oumaima Dahass, Asma Kafih, Me

Abstract

well as density and related to the viscosity of vegetable oils are known which implies that to see if oil can function as a lubricant simply knowing its density, so our present study we do the measurement of the density of two oils ( rapeseed and nigella ), and the results showed that rapeseed density decreases very dramatically depending on the temperature increase unlike the nigella , and we know very well that the oil nigella and expensive compared to rapeseed oil so we can not consider nigella oil as a good lubricant.