Phase transition studies in petroleum waxes through FT-IR spectroscopy Phase transition studies in petroleum waxes through FT-IR spectroscopy and calorimetry
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Tiwari,G.B
Tyagi,O.S Srivastava,S.P Pandey,D.C Goyal,S.K Kapoor,V.B |
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| Date |
2010-05-24T09:54:59Z
2010-05-24T09:54:59Z 2010-05-24T09:54:59Z |
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| Identifier |
Indian Journal of Chemical Technology,Vol. 4,January 1997, pp. 29-33
http://hdl.handle.net/123456789/593 |
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| Description |
Solid-solid phase transitions in petroleum waxes with different melting points have been studied
using Fourier Transform Infrared (Fr-IR) spectroscopy and calorimetry. The temperatures and enthalpies
of these transitions have been measured and their manifestation in the temperature dependent
IR spectra have been identified. It is found that the number of phase transitions as well as their
enthalpies depend on the n-paraffins distribution in the wax. These solid-solid phase transitions have
been shown to govern the temperature dependence of hardness, as measured by needle penetration,
of the wax. The phase transitional parameters have been correlated with the average chain length
and the variation of transition temperature with a composition related parameter, a, obtained from
the carbon number distribution in the wax,has been studied.
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| Language |
en_US
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| Subject |
Petroleum Wax
FTIR GC Phase Transitions Calorimetry |
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| Title |
Phase transition studies in petroleum waxes through FT-IR spectroscopy Phase transition studies in petroleum waxes through FT-IR spectroscopy and calorimetry
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| Type |
Article
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