Determination of Some Physical and Chemical Properties for Different Samples of Petroleum Lubricants

Abstract

Some physical and chemical properties for the different samples of lubricants
oil for sewing machines, lubricants oil for car’s engine before and after burn process
such as, density (d), Specific gravity (Sp. gr.), standard density (API), dynamic
viscosity (η ) , Kinematics viscosity (ν ) , Fludity (Φ) , Refractive index (R.I ), the
percentage of ash (%Ash), acidity and basicity for the different samples of petroleum
lubrications were determined.
The heat of combustion (gross calorific value) (Q), heat of Latent (L) and the
percentage of hydrogen (%H ) for the same samples were calculated also.