Abstract
The low-temp.tar-naphtha was fractionated into 30 fractions of 5°C inter-vals each.Some physical properties, of the each fraction, i.e, refractive index, specific gravity, Molecular weight, etc., were determined and the distribution of aromatic, olefinic and paraffinic hydrocarbons was measured.
Detection of some aromatic constituents was performed and as the results of it, benzene and m-xylene were found.
Some n-paraffines, whose carbon numbers are 7-11, were isolated by means of extractive crystallization method using urea adduct.
