Potential degassing of hydrogen chloride from acidified sodium chloride droplets

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Author(s)

  • S. L. Clegg
  • P. Brimblecombe

Detail(s)

Original languageEnglish
Pages (from-to)465-470
Journal / PublicationAtmospheric Environment (1967)
Volume19
Issue number3
Publication statusPublished - 1985
Externally publishedYes

Abstract

The equilibrium constant for the reaction: HClg = Haq + + Claq - is calculated from partial pressure data for a range of temperatures. It is found to vary between 3.9 × 107 and 1.84 × 106 mol2 kg-2 atm-1 from 0 to 25°C. A closed box aerosol droplet model is developed to simulate the potential degassing of HC1, taking into account thermodynamic and droplet radius effects. Equilibrium degassing of HC1 is calculated and found to be very high, greater than 90 % of the initial hydrogen ion concentration for relative humidities less than about 98 %. Hydrogen chloride loss increases with decreasing droplet radius, but this effect is only important at relative humidities close to 100 %. The results are found to be rather insensitive to errors in the calculated mean activity coefficient of HC1. © 1985.

Research Area(s)

  • aerosol, Henry's Law constant, Hydrogen chloride, sea salt

Citation Format(s)

Potential degassing of hydrogen chloride from acidified sodium chloride droplets. / Clegg, S. L.; Brimblecombe, P.

In: Atmospheric Environment (1967), Vol. 19, No. 3, 1985, p. 465-470.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal