Criteria of stability for dinitrogen pentoxide in organic media and anhydrous HNO3. Appraisal of the nitrating efficiency of some nitronium complexes in sulfolane

Wartel, M.

doi:10.1016/0013-4686(91)85290-n

Cited by 8 publications

(1 citation statement)

References 39 publications

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“…108,110 Indeed these two combined datasets show a net increase in g(N 2 O 5 ) at room temperature from B0.01 up to 0.05 as the sulfuric acid mole fraction increases. N 2 O 5 is known to directly ionize to NO 2 + in high mole fraction solutions, and HNO 3 is readily protonated as well, 117,[133][134][135][136][137] both of which could increase the net hydrolysis rate of N 2 O 5 at high acid content. Perhaps as important, in terms of accurate experimental determination of g(N 2 O 5 ), is the role of acidity in reducing the reverse reaction in step (R3f,r), i.e.…”

Section: The Role Of Bulk Compositionmentioning

confidence: 99%

Quantifying trace gas uptake to tropospheric aerosol: recent advances and remaining challenges

2012

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The interactions of trace gases with tropospheric aerosol can have significant effects on both gas phase and aerosol composition. In turn, this may affect the atmospheric oxidizing capacity, aerosol hygroscopicity and optical properties, and the lifetimes of trace aerosol species. Through the detailed description of specific reaction systems, this review article illustrates how detailed experimental studies of gas-particle interactions lead to both a comprehensive understanding of the underlying physical chemistry as well as accurate parameterizations for atmospheric modeling. The reaction systems studied illustrate the complexity in the field: (i) N(2)O(5) uptake, presented as a benchmark multiphase system, can lead to both NO(x) loss and halogen activation, (ii) loss of HO(2) on aqueous particles is surprisingly poorly studied given its potential importance for HO(x) loss, (iii) uptake of HNO(3) by marine aerosol and heterogeneous oxidation of organic-bearing particles are examples of how gas-particle interactions can lead to substantial alteration of aerosol composition, and (iv) the uptake of glyoxal to ammonium sulfate aerosol leads to highly complex particle-phase chemistry. In addition, for the first time, this article presents the challenges that must be addressed in the design and interpretation of atmospheric gas-to-particle uptake experiments.

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