Bromine nitrate and its stratospheric significance

Bromine nitrate and its stratospheric significance
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硝酸溴及其平流层意义

DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
F. Rowland
F. Rowland
中科院分区：
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文献类型：
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作者：
J. E. Spencer;F. Rowland

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合成并提纯了硝酸溴Brono/SUB_2/，测定了其紫外光谱和红外光谱。Brono/sub2/的平流层光解速度约为类似的ClONO/sub2/的20倍。然而，由于HBr对于去除平流层臭氧的BrO/subx/-催化链中的汇并不像HCl对于ClO/subx/链中的HCl那样重要，因此可能有多达10%到20%的溴存在于BrO/sub2/中。测量从Bro+NO/sub2/+M形成的速率对于准确估计Bro/sub2/的平流层重要性是必要的。
Bromine nitrate, BrONO/sub 2/, has been synthesized and purified, and its ultraviolet and infrared spectra have been measured. The stratospheric photolysis of BrONO/sub 2/ is about twenty times more rapid than that of the analogous ClONO/sub 2/. However, since HBr is not as important a sink in the BrO/sub x/-catalytic chain for removal of stratospheric ozone as HCl is for the ClO/sub x/ chain, as much as 10 to 20% of the Br may be present as BrONO/sub 2/. Measurements of the rate of its formation from BrO + NO/sub 2/ + M are necessary for accurate estimate of the stratospheric importance of BrONO/sub 2/.