Shock tube study of cyanogen oxidation kinetics

✍ Scribed by Michel Y. Louge; Ronald K. Hanson

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 811 KB
• Volume: 16
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550160306

✦ Synopsis

Mixtures of cyanogen and nitrous oxide diluted in argon were shock-heated to measure the rate constants of ( 2 )

and the spectral coincidence of a CO infrared absorption line [v(2 +-l), J(37 +-38)] with a CO laser line [v(6 + 5 ) , J(15 + 16)l was exploited to monitor CO in absorption. The CO measurement established that reaction ( 3 ) produces CO in excited vibrational states. A computer fit of the experiments near 2000 K led to cm3/mol . s k -1 0 1 1 7 0 ( + 0 2 5 , -0 1 9 ) 2k -101326'026 cm3/mol . 3 -An additional measurement of NO via infrared absorption led to an estimate of the ratio k,/k,: ( 5 ) NCO + O + C O + NO ( 6 ) NCO + M + N + CO + M with k,/k, = 10336r027 at 2150 K. Mixtures of cyanogen and oxygen diluted in argon were shock heated to measure the rate constant of ( 4 ) and the ratio k,/k, by monitoring CN in absorption. We found near 2400 K: CN + O,-.NCO + 0 and The combined measurements of &,/k, lead to k,/k, = 10-3.07 exp( + 31,80O/T) ( -+ 60%)

for 2150 s T s 2400 K.