Review Article

Competition Kinetics of the Nonbranched-Chain Addition of Free Radicals to Olefins, Formaldehyde, and Oxygen

Figure 3

(1) Reconstruction of the functional dependence of the 2-methylbenzyl hydroperoxide formation rate 𝑉 3 (RO2H) on the initial dissolved oxygen concentration x from empirical data (points) using (3b) (model optimization with respect to the parameter 𝛼 ) for the o-xylene-oxygen system at 373 K [45] (standard deviation of 𝑆 𝑌 = 5 . 3 7 × 1 0 7 . (2) Reconstruction of the functional dependence of the total hydrogen peroxide formation rate 𝑉 3 , 7 (H2O2) on the initial dissolved oxygen concentration x from empirical data (symbols) using (3b) and (12) with 𝛽 = 0 (model optimization with respect to the parameter α) for the γ-radiolysis of water saturated with hydrogen and containing different amounts of oxygen at 296 K [54] ( 𝑆 𝑌 = 1 . 1 3 × 1 0 8 ). The dashed curve described 𝑉 3 (RO2H) as a function of the initial oxygen concentration x based on (3b) model optimization with respect to α) and the experimental data of curve 2 ( 𝑆 𝑌 = 1 . 7 3 × 1 0 8 ).
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