Registration Dossier

Environmental fate & pathways

Phototransformation in air

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Administrative data

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Description of key information

Half-life: 3.449 hours

Key value for chemical safety assessment

Half-life in air:
3.449 h
Degradation rate constant with OH radicals:
0 cm³ molecule-1 d-1

Additional information

The calculated half-life of 3.449 hours (ISP, 2010) indicates that n-Vinylpyrrolidone will react with hydroxyl radicals in the atmosphere and that there is little or no potential for long-range transport.