论文信息 - A tunable diode laser study of the reactions of nitric and nitrous acids: HNO3+NO and HNO2+O3

A tunable diode laser study of the reactions of nitric and nitrous acids: HNO3+NO and HNO2+O3

This study of the reactions of nitrous and nitric acids demonstrates a new application of tunable diode laser technology. The diode laser is used for the direct detection of HNO2 and HNO3 in a chemical kinetic system. We have established an upper limit for the rate constant for HNO3+NO→HNO2+NO2 [k1? (3.4±2) ×10−22 cm3/molecule⋅s] and have confirmed that nitrous acid is a product of this reaction. We have also established an upper limit for the rate constant for [HNO2+O3→HNO3+O2[k4? (4.5±3) ×10−19 cm3/molecule⋅s.]

F. Fehsenfeld | C. J. Howard | J. Wells | G. E. Streita

[1] E. Kaiser,et al. The kinetics of the gas phase reaction of nitrous acid with ozone , 1977 .

[2] E. Hinkley,et al. Measurement of the fundamental vibrationrotation spectrum of CIO. , 1977, Applied optics.

[3] E. W. Kaiser,et al. Measurement of the rate constant of the reaction of nitrous acid with nitric acid , 1977 .

[4] J. H. Shaw,et al. Kinetic study of nitrous acid formation and decay reactions in gaseous mixtures of nitrous acid, nitrogen oxide (NO), nitrogen oxide (NO2), water, and nitrogen , 1976 .

[5] William H. Corcoran,et al. Kinetics and Mechanisms of the Gas-Phase Reaction of Water Vapor and Nitrogen Dioxide , 1974 .

[6] R. A. Cox. The photolysis of gaseous nitrous acid , 1974 .

[7] A. Lazrus,et al. Nitric Acid Vapor in the Stratosphere , 1972 .

[8] H. Johnston. Reduction of Stratospheric Ozone by Nitrogen Oxide Catalysts from Supersonic Transport Exhaust , 1971, Science.

[9] F. Murcray,et al. Presence of HNO 3 in the Upper Atmosphere , 1969 .

[10] F. Fehsenfeld,et al. Origin of water cluster ions in the D region , 1969 .

[11] S. Jaffe,et al. The photolysis of nitrogen dioxide in the presence of nitric acid at 3660 A. and 25.degree. , 1967 .

[12] J. Smith. A Rate Study of the Oxidation of Nitric Oxide with Nitric Acid Vapor , 1947 .