Atomic Iodine Generation via Fluorine Atoms for Chemical Oxygen-Iodine Laser

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Title:Atomic Iodine Generation via Fluorine Atoms for Chemical Oxygen-Iodine Laser
Creators:
Čenský, Miroslav
Špalek, Otomar
Jirásek, Vít
Kodymová, Jarmila
Jakubec, Ivo
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 71, 5, pp. 739-755
Uncontrolled Keywords:Halogens, Kinetics, Chemical oxygen-iodine laser, NO, COIL, Atomic iodine, Atomic fluorine

Abstract

Chemical generation of atomic iodine for a chemical oxygen-iodine laser (COIL) was investigated experimentally. In the two-step reaction mechanism, molecular fluorine reacts with nitrogen oxide and formed fluorine atoms react then with hydrogen iodide to iodine atoms. The efficiency of this process was studied in dependence on mixing conditions, flow rate of reacting gases and pressure in reactor. A maximum concentration of atomic iodine was obtained at approximately equimolar ratio of reacting gases (F<sub>2</sub>, NO and HI), which agrees well with the stoichiometry of production reactions. A shortage of any reacting gases limits the rate of atomic iodine formation. An excess of F<sub>2</sub> relative to NO at a simultaneous deficiency of HI had a most detrimental effect on atomic iodine production. High concentrations of atomic iodine (5-8 × 10<sup>15</sup> cm<sup>-3</sup>) were achieved by this method at pressures 4-9 kPa, which are sufficient for a COIL operation. This makes it possible to use the above method as a source of iodine atoms and their injection into the primary flow of singlet oxygen in COIL. <p>

Title:Atomic Iodine Generation via Fluorine Atoms for Chemical Oxygen-Iodine Laser
Creators:
Čenský, Miroslav
Špalek, Otomar
Jirásek, Vít
Kodymová, Jarmila
Jakubec, Ivo
Uncontrolled Keywords:Halogens, Kinetics, Chemical oxygen-iodine laser, NO, COIL, Atomic iodine, Atomic fluorine
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:71
Number:5
Page Range:pp. 739-755
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20060739UNSPECIFIED
ID Code:2504
Item Type:Article
Deposited On:06 Feb 2009 17:19
Last Modified:06 Feb 2009 16:19

Citation

Čenský, Miroslav; Špalek, Otomar; Jirásek, Vít; Kodymová, Jarmila; Jakubec, Ivo (2006) Atomic Iodine Generation via Fluorine Atoms for Chemical Oxygen-Iodine Laser. Collection of Czechoslovak Chemical Communications, 71 (5). pp. 739-755. ISSN 0010-0765

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