High temperature kinetics of NCO

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

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 602 KB
• Volume: 58
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(84)90113-5

✦ Synopsis

Mixtures of cyanogen and nitrous oxide diluted in argon were shock heated to measure the ratio of the rate constants for NCO + O-*CO + NO (3) and NCO+ M--*N+ CO+ M. (4) The diagnostic was narrow-line absorption of NCO at 440.479 nm using a remotely located cw ring dye laser source. By varying the mole fraction of nitrous oxide in the initial mixture and conducting otherwise identical experiments, we inferred at 2240°K k3/k~ = 103"54(+0"34'-0"37). Utilizing a recent determination of ]63 and p(evious measurements of the ratio ]63/]64, we recommend over the temperature range 2150 ~< T ~< 2400°K k4= 1Ol6'ST -°'5 exp[-24000/T] cm3/mole/s [x2.3, x0.4].

An additional mixture of cyanogen, oxygen, hydrogen, and nitrous oxide diluted in argon was shock heated and NCO was monitored to infer the rate constant for NCO + H--"CO + NH (5)