Highly efficient jet O2 (1Δ) generator

An investigation was made of the kinetics of a jet singlet oxygen generator (SOG). It was found that the rate of Cl₂ absorption by the surface of the solution was β = β₀ [KOH]₀^1/2, where β₀ ~ 148 liter^0.5·cm·s^–1·mol^–0.5. The rate constant of the O₂ (¹Δ) formation reaction was estimated to be К ≈ 4 X 10⁸ liter·mol^–1·s^–1. When the Cl₂ pressure in the jet SOG was high, the production of HO₂^– was compensated mainly by its molecular diffusion from the depth of the solution. Quenching of O₂ (¹Δ) in the interior of the SOG was approximately five times stronger than that deduced from an analysis of known reactions. An investigation was made of the dependences of the output characteristics of the jet SOG on its initial parameters and relationships were derived for achieving a high O₂ (¹Δ) yield and a low Cl₂ concentration. It was demonstrated that a jet SOG could operate at a pressure of 30 Torr with an O₂ (¹Δ) yield of 60%, a Cl₂ concentration of less than 10%, and a water vapor content of ~ 5%.