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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

Sodium perborate is rapidly degraded in river water.

Key value for chemical safety assessment

Half-life in freshwater:
2.5 d
at the temperature of:
296 K

Additional information

The degradation of sodium perborate monohydrate in river water was determined by measuring the decrease of active oxygen. After an incubation period of 28 days 85% of the initial sodium perborate concentration (15 mg/L) had been removed (Degussa 1994). From the data measured by Degussa a half life time of about 59 hours for the degradation of sodium perborate monohydrate in river water was estimated.