✦ LIBER ✦
The formation of ammonium sulphate in water droplets exposed to gaseous sulphur dioxide and ammonia
✍ Scribed by A. P. Van Den Heuvel; B. J. Mason
- Publisher
- John Wiley and Sons
- Year
- 1963
- Tongue
- English
- Weight
- 433 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0035-9009
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✦ Synopsis
Abstract
The rate of formation of ammonium sulphate in water drops exposed to air containing known concentrations of gaseous sulphur dioxide and ammonia has been measured. The mass of sulphate formed is proportional to the product of the surface area of the drops and the time of exposure. Extrapolation of the laboratory results to the atmosphere suggests that the large condensation nuclei 0·2 μ < r < 1 μ of ammonium sulphate, found by Junge to be abundant in industrially polluted air, are formed by the absorption of SO~2~ and NH~3~ in cloud and fog droplets.