Kinetic study of the gas phase formation and decomposition reactions of nitrous acid

Journal Article · Thu Sep 08 00:00:00 EDT 1977 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100533a001· OSTI ID:7212094

Kaiser, E W; Wu, C H

The kinetics of the gas phase decomposition and formation reactions of nitrous acid, 2HONO = NO + NO/sub 2/ + H/sub 2/O (k/sub 1/, k/sub 2/), have been investigated in a Pyrex reactor at HONO partial pressures of 0.05 to 1.0 Torr and total pressures of 5 to 50 Torr using a mass spectrometer detector. The reactions were determined to be heterogeneous under all surface conditions tested. The best upper limits to the homogeneous rate constants at 300/sup 0/K were k/sub 1/ less than or equal to 1 x 10/sup -20/ cm/sup 3//molecule s and k/sub 2/ less than or equal to 4.4 x 10/sup -40/ cm/sup 6//molecule/sup 2/s. The kinetics of the heterogeneous reactions were examined, and a rate law is proposed.

• Research Organization: Ford Motor Co., Dearborn, MI
• OSTI ID: 7212094
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 81:18; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DECOMPOSITION
FLUIDS
GASES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
NITROUS ACID
REACTION KINETICS
YIELDS