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Environmental fate & pathways

Phototransformation in water

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Description of key information

Key value for chemical safety assessment

Half-life in water:
45 yr

Additional information

Direct degradation of 2 -butoxyethanol through photolysis is negligible. Despite a relatively high k(OH) of 1.15E09 M-1s-1) solar simulation and UV experiments indicate that in natural systems with [HO] within the typical range (10-18 M to 10-16 M), 2 -butoxyethanol is not expected to undergo significant, rapid degradation due to direct or indirect photolysis.