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Conclusions 1.The large induction periods in ignition of a fulminating mixture near the first explosive range in quartz reactors washed with fluoric or boric acid are due to inhibition of combustion by the products of the reaction of the active sites of the flame with extraneous impurities.2.Measures which prevent the formation of an inhibitor result in the good agreement of the calculated and experimentally observed induction periods.3.An oscillating mode of combustion of hydrogen only occurs when contaminants are present in the reactor system; fluttering of the flame apparently arises as a result of the interaction of the active sites with the surface on which the extraneous substances are sorbed.

Quantitative agreement of calculation and experimental data was obtained for the first time for final depletions and maximum reaction rate in the chain explosion of a stoichiometric explosive mixture close to the first combustion limit.

Machine modeling was used to investigate the kinetic mechanism of the gas-phase oxidation of carbon disulfide at elevated temperatures. The scheme of the process examined includes 70 elementary reactions. On the basis of the kinetic data on these reactions available in the literature the rates of the oxidation process, the concentrations of end products and intermediate particles were calculated as a function of the time under various conditions (composition, pressure, temperature). Comparison of the results obtained with the experimental data showed satisfactory agreement and also revealed some important elementary reactions.

A kinetic model of oxidation of hydrogen sulfide is proposed. The model contains 201 elementary stages, 23 particles, and satisfactorily describes the experimental data in a wide range of temperatures and pressures.

By resonance fluorescence in a jet at 300–670°K, the rate constants of the reactions of atomic hydrogen with phosphorus trichloride and P4, are determined. In the products of these reactions, atomic phosphorus is registered in concentrations comparable with the concentrations of expended hydrogen atoms.

It was found that when hydrogen is oxidized in a quartz reactor washed with boric acid and prepared in such a way that vacuum grease and other contaminants are excluded, there is more than a tenfold decrease in the first ignition limit and a corresponding decrease in the probability of the heterogeneous destruction of the H atoms to a value of 10-6, and also the disappearance of “abnormally” high burnups of the 2H2 + O2 mixture.