The carbon monoxide-sensitized decomposition of hydrogen peroxide
1970; Elsevier BV; Volume: 15; Issue: 2 Linguagem: Inglês
10.1016/0010-2180(70)90027-1
ISSN1556-2921
AutoresR. R. Baldwin, Raymond W. Walker, S.J. Webster,
Tópico(s)Industrial Gas Emission Control
ResumoCarbon monoxide accelerates the decomposition of H2O2 because the propagation reaction 31 competes with the termination reaction 15: OH + CO = Co2 + H OH + H2O2 = H2O + HO2 The accelerating effect of high concentrations of CO requires the introduction of reaction 41, which competes with the termination reaction 10: HO2 + CO = CO2 + OH HO2 + HO2 = H2O + O2 A detailed analysis of the results gives k15/k31 = 21 ± 2, k41/k101–2 = (5.8 ± 1.5) × 10−4 (mm Hg)−1,2 sec−1,2 = 0.012 (liter mole−1 sec−1,2 at 440 °C. OH + H2 = H2O + H Since k15k1 = 5.0, k31k1 = 0.24. When this value is combined with those of other workers, k31/k1 = 0.0113 exp (4700/RT). From the known alue of k1, k31 = 2.5 × 108 exp (−450/RT) liter mole−1 sec−1), cal units.
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