Discharge flow kinetic study of the reactions of NO sub 3 with Br, BrO, HBr, and HCl

Journal Article · Thu Nov 30 04:00:00 EST 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100361a012· OSTI ID:7071072

Mellouki, A; Poulet, G; Le Bras, G ^[1]; Singer, R; Burrows, J P; Moortgat, G K ^[2]

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1. C.N.R.S., Orleans (France)
2. Max-Planck Institut fuer Chemie, Mainz (Germany, F.R.)

The reactions of NO{sub 3} with Br, BrO, HBr, and HCl have been studied at 298 K by using the discharge-flow EPR method. In the study of the reactions of NO{sub 3} with Br and BrO, where NO{sub 3} and Br or BrO were flowed separately in the presence of excess NO{sub 3}, the following rate constants were found: k{sub 1} = (1.6 {plus minus} 0.7) {times} 10{sup {minus}11} for NO{sub 3} + Br {yields} NO{sub 2} + BrO (1) and 0.3 {times} 10{sup {minus}12} {le} k{sub 3} {le} 3 {times} 10{sup {minus}12} for NO{sub 3} + BrO {yields} Br + NO{sub 2} + O{sub 2} (3). Units are cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}. For the reactions NO{sub 3} + HCl {yields} products (6) and NO{sub 3} + HBr {yields} products (7), the upper limits k{sub 6} {le} 5 {times} 10{sup {minus}17} and k{sub 7} {le} 1 {times} 10{sup {minus}16} were obtained.

• OSTI ID: 7071072
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:24; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540110
ATMOSPHERIC CHEMISTRY
BROMINE
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMISTRY
CHLORINE
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
HALOGENS
INFORMATION
KINETICS
MEASURING INSTRUMENTS
MEASURING METHODS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS