Kinetics of SH with NO/sub 2/, O/sub 3/, O/sub 2/, and H/sub 2/O/sub 2/

Journal Article · Thu Dec 05 04:00:00 EST 1985 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100271a038· OSTI ID:5827719

Friedl, R R; Brune, W H; Anderson, J G

A low pressure (1-8 torr of He) discharge flow reactor with (a) LIF detection of SH using a high repetition rate (20 kHz) metal atom laser to circumvent severe predissociation of the A/sup 2/..sigma../sup +/ state and (b) resonance fluorescence detection of OH has been used to examine the kinetics of the title reactions at 298 K: SH + NO/sub 2/ ..-->.. HSO + NO, SH + O/sub 3/ ..-->.. HSO + O/sub 2/; SH + O/sub 2/ ..-->.. SO + OH, SH + H/sub 2/O/sub 2/ ..-->.. H/sub 2/S + HO/sub 2/; SH + H/sub 2/O/sub 2/ ..-->.. HSO + H/sub 2/O. Regeneration of SH in reaction 2 by HSO + O/sub 3/ is observed and is used to infer a rate constant for HSO + O/sub 3/ ..-->.. products. Absence of OH production in that reaction implies that the primary products are SH + 2O/sub 2/. Isotope experiments with H/sub 2/S replaced by D/sub 2/S substantiate that conclusion and yield a reaction rate constant for DSO + O/sub 3/ ..-->.. SD + 2O/sub 2/. Brief discussions of SH reactivity compared with OH and Br are offered, as well as a summary of the atmospheric chemistry of SH. 20 references, 7 figures.

• Research Organization: Harvard Univ., Cambridge, MA
• OSTI ID: 5827719
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:25; ISSN JPCHA
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
DATA
DEUTERIUM COMPOUNDS
ELEMENTS
EMISSION SPECTROSCOPY
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
GAS LASERS
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
HYDROGEN SULFIDES
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KINETICS
LASERS
METAL VAPOR LASERS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
NUMERICAL DATA
OPTICAL PUMPING
OXIDES
OXYGEN
OXYGEN COMPOUNDS
OZONE
PEROXIDES
PUMPING
RADICALS
REACTION KINETICS
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS