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Environmental fate & pathways

Phototransformation in air

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Description of key information

In the atmosphere, the thiocyanate salts are not likely to be degraded by reaction with hydroxyl and ozone radicals.

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Additional information

Degradation rates for the thiocyanates were calculated with the Atmospheric Oxidation Programme (AOPWIN v1.92a) based on structure activity relationships developed by Atkinson (1987). With a concentration of 500,000 OH-radicals/cm3, hydroxyl degradation rate constant of 0.000000 E-12 cm3/molecule-sec was calculated, and a degradation half-life of for the 3 thiocyanates could not be calculated. Because of the absence of acetylene and olefin structures in the molecules, reaction with ozone could not be estimated.