Atomic and Molecular Hydrogen Yields from Irradiated Acids
- 1 August 1960
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 33 (2), 499-508
- https://doi.org/10.1063/1.1731174
Abstract
The paramagnetic-resonance method has been used to measure the yields of atomic hydrogen from many concentrations of aqueous sulfuric, phosphoric, and perchloric acids at 77°K after irradiation with gamma rays. The yields of molecular hydrogen (and oxygen) have also been measured after similarly irradiated acids were warmed and the gases collected. The correspondence between atom and molecule yields is discussed. In sulfuric and phosphoric acids the atom and molecule yields depend upon whether the acid is a glassy or crystalline solid at the time of irradiation. Prolonged irradiation of 0.129-mole-fraction sulfuric acid (glassy) gives a saturation concentration of 3.4×1018 hydrogen atoms per gram. The corresponding number for 0.125-mole-fraction perchloric acid is 2.9×1019. The scavenging effects of nitric acid and hydrogen peroxide on the atomic and molecular hydrogen yields for 0.129-mole-fraction sulfuric acid have been measured and are discussed. The corresponding effect of nitric acid on the atom yield from perchloric acid is presented.Keywords
This publication has 9 references indexed in Scilit:
- EPR Studies of Electron Irradiated Ice and Solid HydrogenThe Journal of Chemical Physics, 1959
- Temperature and Phase Effection the Photolysis of Ethyl IodideJournal of the American Chemical Society, 1959
- SIGNIFICANT STRUCTURES IN THE LIQUID STATE. IProceedings of the National Academy of Sciences, 1958
- Effects of γ-Radiation on Ice1Journal of the American Chemical Society, 1956
- RELATIVE RATE CONSTANTS FOR REACTION OF OH RADICAL WITH SULFURIC ACID FORMIC ACID AND CEROUS IONJournal of the American Chemical Society, 1956
- Paramagnetic resonance studies of atomic hydrogen produced by ionizing radiationDiscussions of the Faraday Society, 1955
- Yields of Hydrogen Peroxide in the Decomposition of Water by Cobalt γ-Radiation. I. Effect of Bromide IonJournal of the American Chemical Society, 1954
- Atomic Hydrogen Hyperfine Structure in Irradiated AcidsPhysical Review B, 1954
- A Calorimetric Calibration of Gamma-Ray ActinometersThe Journal of Chemical Physics, 1953