Study of the HNO + HNO and HNO + NO reactions by intracavity laser spectroscopy

S. G. Cheskis*, V. A. Nadtochenko, O. M. Sarkisov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Flash photolysis of CH3CHO and H2CO in the presence of NO has been investigated by the intracavity laser spectroscopy technique. The decay of HNO formed by the reaction HCO + NO → HNO + CO was studied at NO pressures of 6.8–380 torr. At low NO pressure HNO was found to decay by the reaction HNO + HNO → N2O + H2O. The rate constant of this reaction was determined to be k1 = (1.5 ± 0.8) × 10−15 cm3/s. At high NO pressure the reaction HNO + NO → products was more important, and its rate constant was measured to be k2 = (5 ± 1.5) × 10−19 cm3/s. NO2 was detected as one of the products of this reaction. Alternative mechanisms for this reaction are discussed.

Original languageEnglish
Pages (from-to)1041-1050
Number of pages10
JournalInternational Journal of Chemical Kinetics
Issue number10
StatePublished - Oct 1981
Externally publishedYes


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