Flash photolysis/tunable diode laser absorption spectroscopy studies of HCl as a product of the reactions: Cl + C2H6 and Cl + CH3CHO

Carla S. Kegley-Owen; Geoffrey S. Tyndall; John J. Orlando; Alan Fried

doi:10.1117/12.255316

21 October 1996 Flash photolysis/tunable diode laser absorption spectroscopy studies of HCl as a product of the reactions: Cl + C₂H₆ and Cl + CH₃CHO

Carla S. Kegley-Owen, Geoffrey S. Tyndall, John J. Orlando, Alan Fried

Author Affiliations +

Proceedings Volume 2834, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring; (1996) https://doi.org/10.1117/12.255316
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

A time-resolved flash photolysis/tunable diode laser absorption spectroscopy system has been constructed to study reaction products of gas-phase chemical reactions. The use of FP to initiate the chemistry results in essentially a wall-less reactor due to the time of reaction being much shorter than the time of diffusion. The use of TDLAS allows the time-resolved detection of HCl by monitoring individual lines in the rovibrational spectrum. While the system is being developed for study of the products of radical-radical reactions, preliminary studies involved detection of HCl from reaction of Cl-atoms with organic species. The reaction Cl + C₂H₆ yields HCl + C₂H₅ (1) was studied to characterize the system and determine the detection limit for HCl. The rate coefficient, k₁, was determined to be (5.9 +/- 0.4) X 10^-11 cm³ molec^-1s^-1 in agreement with the recommended values. HCl (v equals 0) and HCl (V equals 1) were simultaneously measured as products of the reaction Cl + CH₃CHO yields HCl + CH₃CO (2) at 2906.247 cm^-1 and 2906.337 cm^-1 respectively. It was determined for this reaction that k₂ equals (7.5 +/- 0.6) X 10^-11 cm³molec^-1s^-1.

Citation Download Citation

Carla S. Kegley-Owen, Geoffrey S. Tyndall, John J. Orlando, and Alan Fried "Flash photolysis/tunable diode laser absorption spectroscopy studies of HCl as a product of the reactions: Cl + C₂H₆ and Cl + CH₃CHO", Proc. SPIE 2834, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring, (21 October 1996); https://doi.org/10.1117/12.255316

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available