"bde65cfd-faec-4656-bc27-22dfe30912b7" . "CARBONYL SULFIDE"^^ . "COS, a gas that is very stable and unreactive in the troposphere, but, it\nis thought, photolyzes to form carbon monoxide, CO, and sulfur, S, in\nthe stratosphere. Through stratospheric chemical reactions, the sulfur\natoms are converted to SO2 and H2SO4 which form sulfate aerosol, cloud\ncondensation nuclei, but which eventually settles into the troposphere and\nreacts to form sulfuric acid, a component in acid rain. The major\nbiospheric sources of COS are thought to be biological. [Analytical\nChemistry; v 65; pages 976-982; 1993.] [Atmospheric Chemical Compounds:\nSources, Occurrence, and Bioassay; Graedel, Hawkins, Claxton; page 513;\n1986; Academic Press; Orlando.]"^^ . .