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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >HETEROGENEOUS INTERACTION OF PEROXYACETYL NITRATE WITH LIQUID SULFURIC ACID
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HETEROGENEOUS INTERACTION OF PEROXYACETYL NITRATE WITH LIQUID SULFURIC ACID

机译：硝酸过氧乙酰乙酸与液体硫酸的异质相互作用。

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The uptake of peroxyacetyl nitrate (PAN) on liquid sulfuric acid surfaces has been investigated using a fast-flow reactor coupled to a chemical ionization mass spectrometer. PAN was observed to be reversibly adsorbed on sulfuric acid. From the time-dependent uptake, Henry's law solubility constant of PAN in sulfuric acid was obtained. The measured solubility constant was found to depend strongly on temperature (199-226 K), but weakly on acid composition (46-72 wt %). On 72 wt % H2SO4, for example, the effective Henry's law solubility constant was determined to be about 5.6 x 10(4) and 3.1 x 10(3) M atm(-1) at 208 and 222 K, respectively. Heterogeneous reactions of PAN with HCl, Cl, ClO, and OClO on liquid sulfuric acid were also investigated and found to be very slow (gamma < 1 x 10(-4)). Atmospheric implications of the present results are discussed. [References: 54]
机译：已经使用耦合到化学电离质谱仪的快速流反应器研究了液态硫酸表面上过氧乙酰硝酸盐（PAN）的吸收。观察到PAN可逆地吸附在硫酸上。根据时间的吸收，获得了PAN在硫酸中的亨利定律溶解度常数。发现测得的溶解度常数强烈依赖于温度（199-226 K），而弱依赖于酸组成（46-72 wt％）。例如，在72 wt％的H2SO4上，有效的亨利定律溶解度常数在208 K和222 K下分别确定为约5.6 x 10（4）和3.1 x 10（3）M atm（-1）。还研究了PAN与HCl，Cl，ClO和OClO在液态硫酸上的多相反应，发现反应非常缓慢（γ<1 x 10（-4））。讨论了目前结果对大气的影响。 [参考：54]

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