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- W2079713517 abstract "The kinetics of oxygen evolution on warming the trapped products (at −196 °C) from water or hydrogen peroxide vapor dissociated in a glow discharge were studied by the manometric method. Under closely controlled conditions it was possible to distinguish clearly the decomposition of the two intermediates, H 2 O 3 and H 2 O 4 . The latter begins to decompose measurably following crystallization of the glassy solid at about −115°; the trioxide decomposes readily between −50 and −35°. Typically, the yields of H 2 O 3 from dissociated water vapor were of the order of 3 to 5 mol%; those of H 2 O 4 , only about one-tenth as much. Varying the distance between the microwave discharge and the cold trap was found to affect differently the yields of the various products. Those of water and peroxide showed a simple, direct correlation; the minor constituents H 2 O 3 and H 2 O 4 followed entirely different patterns. Only a small fraction of the peroxide is formed via the H 2 O 4 intermediate in these systems. Less water, and more of the higher oxides, were obtained from dissociated hydrogen peroxide than from water vapor.The deuterated systems showed some unusual isotope effects. The yields of D 2 O 3 were always higher (up to twice and even more) than those of H 2 O 3 under similar conditions. The other products showed little or no such effect, except for occluded oxygen and ozone which decreased by about half. Finally, the deuterium polyoxides decompose at slightly higher temperatures (10 to 15°) than their hydrogen analogs. Mechanisms are proposed for the formation and decomposition of the polyoxides." @default.
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- W2079713517 date "1975-08-15" @default.
- W2079713517 modified "2023-10-17" @default.
- W2079713517 title "Studies on Hydrogen–Oxygen Systems in the Electrical Discharge. VII. Deuterium Isotope Effects in the Chemistry of the Hydrogen Polyoxides" @default.
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- W2079713517 doi "https://doi.org/10.1139/v75-354" @default.
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