Is hydrogen cyanide (HCN) a progenitor of acetonitrile (CH3CN) in the atmosphere

The possibility of a link between HCN and CH3CN in the atmosphere has been suggested recently. A new chemical analysis of this problem as well as model calculations indicate that, most probably, these gases are produced at the Earth's surface and destroyed by oxidation in the middle atmosphere. The strength of the photodestruction of these 2 molecules seems to be weak. It is unlikely that HCN is an atmospheric source of CH3CN.

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