Chemical kinetics in the gas phase pulse radiolysis of hydrogen sulfide systems

O.J. Nielsen

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    Formations and decays of HS and HS2 radicals in the gas phase pulse radiolysis of pure H2S, H2S/Ar and H2S/H2 systems have been followed directly by kinetic spectroscopy. The literature on the subject is reviewed and a complete reaction scheme is discussed. Computer-simulations have been used to check the validity of the proposed mechanisms. Rate constants kHS+HS = (2.0 ± 4.0) x 1010 M-1s-1 and KH+H2S = (6.0 ± 1.2) x 108 M-1s-1 have been determined. The reaction of HS radicals with S atoms is responsible for the HS2 formation. Pseudo-first order rate constants for reactions of HS with 1.3 butadiene, ethylene and molecular oxygen are reported.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherRisø National Laboratory
    Number of pages35
    ISBN (Print)87-550-0650-7
    Publication statusPublished - 1980


    • Risø-M-2216
    • Absorption spectroscopy
    • Chemical reaction kinetics
    • Experimental data
    • Gases
    • Hydrogen sulfides
    • Pulsed irradiation
    • Radiation chemistry
    • Radiolysis
    • Reviews
    • Simulation


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