Registration Dossier

Environmental fate & pathways

Phototransformation in air

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Description of key information

In the atmosphere, half-lives of 25.8 hrs for 1,5 -diisocyanato naphthylene and 1.9 hrs for 1,5-naphthylene diamine  are estimated due to the reaction with photochemically produced hydroxyl radicals, considering a OH-concentration of 500,000 radicals/cm³ as a 24-h average (Currenta, 2010).

Key value for chemical safety assessment

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