The total solid paraffins (boiling 170"C+) separated from Mukta crude by urea adduction and its narrow fractions were analysed for their structural composition by proton NMR, infrared spectroscopy and gas chromatography. It has been observed that CH 21CHJ ratio in these samples varies from 7.9 to 13.8 while their average carbon number ranges from 17 to 29.6. The CH 21CHJ ratio and chain length of paraffins increases with increase in boiling range of the fractions.
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