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Carbonyl Sulfide: Potential Agent of Atmospheric Sulfur Corrosion

1981; American Association for the Advancement of Science; Volume: 212; Issue: 4495 Linguagem: Inglês

10.1126/science.212.4495.663

1095-9203

T. E. Graedel, G. W. Kammlott, J. P. Franey,

Surface Modification and Superhydrophobicity

Laboratory exposure experiments demonstrate that carbonyl sulfide in wet air corrodes copper at 22°C at a rate that is approximately linear with total exposure (the product of exposure time and carbonyl sulfide concentration). The corrosion rate is similar to that of hydrogen sulfide, a widely recognized corrodant. The much greater average atmospheric abundance of carbonyl sulfide compared with that of hydrogen sulfide or sulfur dioxide suggests that carbonyl sulfide may be a major agent of atmospheric sulfur corrosion.