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Determination of average carbon number of petroleum waxes by X‐ray diffraction
Author(s) -
Kumar Sanat,
Srivastava S. P.,
Khan H. U.
Publication year - 2008
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889808027027
Subject(s) - wax , carbon number , carbon fibers , microcrystalline , diffraction , melting point , petroleum , materials science , analytical chemistry (journal) , pour point , chemistry , chromatography , crystallography , organic chemistry , physics , optics , composite material , alkyl , composite number
Eight petroleum waxes, both paraffin as well as microcrystalline, have been analysed by X‐ray diffraction. The average carbon number has been estimated by the long‐range ordering observed in the diffractograms of these waxes. The average carbon number has also been determined following the standard gas chromatographic (GC) method. The results obtained by X‐ray diffractometry compare well with those obtained by the GC method. The former method also permits determination of the average carbon number of high melting point waxes, which is otherwise difficult using GC.