Heterogeneous Reactions of N₂O₅ with Nitrate- and Chloride-Containing Solutions: Isotopic Evidence for the Nitration of N₂O₅.

ABSTRACT: The nitrate (NO₃^-) ion has been shown to suppress the reactive uptake of dinitrogen pentoxide (N₂O₅) to aqueous aerosol, yet a molecular mechanism that explains this effect remains elusive. To explore how N₂O₅ and NO₃^- interact in solution, we use isotopically labeled ¹⁵NO₃^- in the presence of Cl^- to mark ^14,14N₂O₅ that react with ¹⁵NO₃^- by detecting the nitration and chlorination products ^14,15N₂O₅, ^15,15N₂O₅, Cl¹⁴NO_2, and Cl¹⁵NO₂. At three Na¹⁵NO₃ concentrations (

SUBMITTER: Derrah TF 

PROVIDER: S-EPMC12641490 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature