Thermal decomposition of hydrogen cyanide behind incident shock waves

Journal Article · Thu Feb 16 00:00:00 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), Vol. 88:4
• Country of Publication: United States
• Language: English

Related Subjects

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