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Published April 2, 2012 | Accepted Version
Journal Article Open

Absorption cross section at 3.39 µm of alkanes, aromatics and substituted hydrocarbons

Abstract

The present study reports gas phase absorption cross sections at 3.39 μm of 21 liquid hydrocarbons. Measurements were performed in the temperature range 303–413 K using an infrared He–Ne laser. In addition to n-alkanes, a number of cyclo-alkane, aromatic, and substituted hydrocarbons were investigated. The results demonstrate that (i) the absorption cross sections are temperature independent in the studied range, and that (ii) the aromatic and substituted hydrocarbons exhibit much smaller cross sections than n-alkanes for an identical number of C–H bonds. A tentative empirical correlation has been developed and shown to accurately predicts the cross section.

Additional Information

© 2012 Elsevier B.V. Received 28 November 2011. Accepted 27 January 2012. Available online 7 February 2012. The present work was carried out in the Explosion Dynamics Laboratory of the California Institute of Technology and was supported by The Boeing Company through a Strategic Research and Development Relationship Agreement CT-BA-GTA-1. The authors thank Vaughan Thomas for useful discussions.

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August 19, 2023
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