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Environmental fate & pathways

Phototransformation in water

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Description of key information

Direct photolysis of diquat C16-18 (N,N,N',N',N''-Pentamethyl-N-C16-18 (even numbered) C18 unsat.-alkyl-1,3-propanediammonium chloride) in water will not occur, because it does not absorb UV radiation above 290 nm .Photo transformation in water is therefore assumed to be negligible

Key value for chemical safety assessment

Half-life in water:
15 yr

Additional information