Thermal decomposition of hydrogen cyanide behind incident shock waves

Journal Article · Thu Feb 16 04:00:00 EST 1984 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150648a009· OSTI ID:6673470

Szekely, A; Hanson, R K; Bowman, C T

The thermal decomposition of hydrogen cyanide was studied over the temperature range 2700-3600 K by using a shock tube technique. HCN-Ar mixtures (12-200 ppmv HCN) were heated by incident shock waves and CN absorption at 388 nm (B/sup 2/..sigma../sup +/, ..mu.. = 0 reversible X/sup 2/..sigma../sup +/, ..mu.. = 0 electronic transition) was used to follow the progress of the decomposition. The low-pressure rate coefficient for the reaction HCN + Ar ..-->.. H + CN + Ar (1) was closely fit by the Arrhenius expression k/sub 1/ = 10/sup 16.0+/-0.15/ exp(-(54650 +/- 1110)/T) cm/sup 3//mol s. The present results are discussed and compared with previously published determinations.

• Research Organization: Stanford Univ., CA
• DOE Contract Number: AM03-76SF00326
• OSTI ID: 6673470
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:4; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL REACTIONS
CYANIDES
DATA
DECOMPOSITION
EXPERIMENTAL DATA
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
NUMERICAL DATA
PYROLYSIS
SHOCK WAVES
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE