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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Since the pass value of > 60 % was not reached within 28 days. 4,6-dichloro-N-(1,1,3,3-tetramethylbutyl)-1,3,5-triazin-2-amine cannot be considered to be readily biodegradable according to OECD guideline 301 B.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed
Type of water:
other: ultrapure grade water

Additional information

The ready biodegradability of4,6-dichloro-N-(1,1,3,3-tetramethylbutyl)-1,3,5-triazin-2-aminewas assessed by measurement of CO2evolution based on the OECD Guideline 301 B.4,6-dichloro-N-(1,1,3,3-tetramethylbutyl)-1,3,5-triazin-2-aminewas tested at a nominal concentration of 15 mg carbon/L calculated at mg/L.

The following biodegradation was determined at the end of the 28-d period:

*4,6-dichloro-N-(1,1,3,3-tetramethylbutyl)-1,3,5-triazin-2-amine     24 %

*Sodium benzoate      76 %

Since the pass value of > 60 % was not reached within 28 days 4,6-dichloro-N-(1,1,3,3-tetramethylbutyl)-1,3,5-triazin-2-aminecannot be considered to be readily biodegradable according to OECD guideline 301 B.