Determination of the absolute rate constants for the room temperature reactions of atomic sodium with ozone and nitrous oxide
Determination of the absolute rate constants for the room temperature reactions of atomic sodium with ozone and nitrous oxide
复制标题
原子钠与臭氧和一氧化二氮室温反应绝对速率常数的测定
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
C. Kolb
中科院分区：
文献类型：
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作者：
J. A. Silver;C. Kolb
钠原子与臭氧的反应对于描述低热层和上层中间层的化学性质非常重要，并且与在这些大气区域观测到的589 nm处钠D线发射直接相关。该反应的室温速率常数为（3.1 ± 0.4）× 10/sup-10/ cm/sup 3/ molecule/sup-1/ s/sup-1/. NaO + O/sub 3/反应的速率常数约为2 × 10/sup-10/ cm/sup 3/ molecule/sup-1/ s/sup-1/，其中0.7 +/- 0.2的产物为NaO/sub 2/ + O/sub 2/，其余为Na +2 O/sub 2/。还测量了Na + N/sub 2/O.的速率常数。NaO + N/sub 2/，在295 ℃时为（7.7 +/- 0.9）× 10/sup-13/ cm/sup 3/ molecule/sup-1/ s/sup-1/。讨论了与臭氧反应对大气层中大气来源的碱金属化学的影响。
The reaction of atomic sodium with ozone is important in describing the chemistry of the lower thermosphere and upper mesosphere and is directly related to the observed sodium D line emissions at 589 nm in these regions of the atmosphere. A room temperature rate constant of this reaction is found to be (3.1 +/- 0.4) x 10/sup -10/ cm/sup 3/ molecule/sup -1/ s/sup -1/. The rate constant for the NaO + O/sub 3/ reaction is determined to be about 2 x 10/sup -10/ cm/sup 3/ molecule/sup -1/ s/sup -1/, with 0.7 +/- 0.2 of the products being NaO/sub 2/ + O/sub 2/ and the remainder Na + 2O/sub 2/. Also measured is the rate constant for Na + N/sub 2/O ..-->.. NaO + N/sub 2/, found to be (7.7 +/- 0.9) x 10/sup -13/ cm/sup 3/ molecule/sup -1/ s/sup -1/ at 295 . The impact of the reaction with ozone on the mesospheric chemistry of alkali metals of meteoric origin is discussed.