Open AccessRadiolysis of N15N14O
Author(s) -
R. Gorden,
P. Ausloos
Publication year - 1965
Publication title -
journal of research of the national bureau of standards. section a. physics and chemistry
Language(s) - Uncategorized
Resource type - Journals
eISSN - 2376-5704
pISSN - 0022-4332
DOI - 10.6028/jres.069a.011
Subject(s) - radiolysis , krypton , xenon , chemistry , yield (engineering) , nitrous oxide , decomposition , nitrogen , ion , radiation chemistry , saturation (graph theory) , radical , radiochemistry , analytical chemistry (journal) , chemical reaction , materials science , organic chemistry , mathematics , combinatorics , metallurgy
The gas-phase gamma-ray radiolysis of N 15 N 14 O has been investigated as a function of dose, concentration, and temperature (-80 to 376 °C). Around 40 °C the ratios N 2 30 / N 2 29and N 15 O/N 14 O are 0.1 and 0.4, respectively, independent of dose and concentration. In the radiolysis of N 14 N 14 O-N 15 O mixtures it was found that the ion pair yield of N 14was 0.5. The ion pair yield of N 2 29in the radiolysis of N 15 N 14 O increases with temperature from 2.6 at 50 °C to 21.7 at 376 °C. On the other hand, the yield of N 2 30is, within experimental error, not affected by a change in temperature, indicating that only the "molecular" nitrogen increases with an increase in temperature. The occurrence of dissociative electron attachment processes is consistent with the experimental observations. The yields of N 2 29and N 2 30increase when a potential difference is applied during radiolysis at the saturation plateau. The latter increase can be accounted for by an enhancement of neutral excited molecule decompositions. Addition of xenon and krypton enhances the decomposition of nitrous oxide. The results indicate that N atoms play a relatively less important role in the inert gas-induced decomposition than in the direct radiolysis.