Abstract
Horizontal gradients in atmospheric aerosol strong acidity have been interpreted in terms of the rate of neutralisation of aerosol H+ by gaseous ammonia. The results indicate a pseudo-first-order rate constant for this reaction within the range 4×10-6 s-1 to 4.1×10-4 s-1 consistent with model results and experimental data derived by other methods. The rate constant is reduced as the aerosol becomes less acidic, which is reflected in a positive correlation between rate constant and aerosol H+/NH4 + ratio.
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Harrison, R.M., Kitto, AM.N. Estimation of the rate constant for the reaction of acid sulphate aerosol with NH3 gas from atmospheric measurements. J Atmos Chem 15, 133–143 (1992). https://doi.org/10.1007/BF00053755
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DOI: https://doi.org/10.1007/BF00053755