The sorption by aluminium of sulphur dioxide at atmospheric concentrations has been investigated using sulphur–35 sulphur dioxide. For the sulphur dioxide dosages used the uptake was always linear and strongly dependent on humidity. The humidity dependence was probably related to the equilibrium between gas-phase water and aluminium surface water. The fraction of sorbed sulphur dioxide desorbed when the partial pressure of sulphur dioxide was reduced was found to increase with decreasing humidity. The results are discussed in relation to a proposed mechanism for the corrosion of aluminium by sulphur dioxide.
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References
1.
CarterV. E., ‘Metal Corrosion in the Atmosphere’, A.S.T.M. 435, 1968, p. 257
2.
SheasbyP. G., Proc. Syn-tp. on Anodising Aluminium, Aston, U.K., April 1967, paper11
3.
CarterV. E., & CampbellH. S., ‘Metal Corrosion in the Atmosphere’, A.S.T.M. 435, 1968, p. 39
