Data for "A deliquescence threshold switches reactive nitrogen chemistry at hydrated ammonium nitrate interfaces"

This dataset contains the experimental data supporting the manuscript "A deliquescence threshold switches reactive nitrogen chemistry at hydrated ammonium nitrate interfaces". The dataset includes: • HIPPIE measurements of interfacial reactive nitrogen species at hydrated ammonium nitrate surfaces under controlled relative humidity conditions. • Gas-phase measurements of nitrogen-containing reaction products obtained during heterogeneous reactions at ammonium nitrate interfaces. • FinEst data used for quantitative analysis and interpretation of deliquescence-induced changes in reactive nitrogen chemistry. These data support the investigation of how deliquescence alters interfacial reaction pathways and switches reactive nitrogen chemistry at hydrated ammonium nitrate aerosol interfaces. For details of the experimental methods, data processing procedures, and scientific interpretation, please refer to the associated journal article.