Registration Dossier
Registration Dossier
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EC number: 202-947-7 | CAS number: 101-50-8
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Half-life period of 4-aminoazobenzene-3,4'-disulphonic acid in water is observed to be 37.5 days (900 hrs.) while in sediment it is 337.5 days (8100 hrs). Based on these half-life values of 4-aminoazobenzene-3,4'-disulphonic acid, it is concluded that the chemical is not persistent in water and persistent in sediment.
Key value for chemical safety assessment
- Half-life in freshwater:
- 37.5 d
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 337.5 d
- at the temperature of:
- 25 °C
Additional information
Half-life period of 4-aminoazobenzene-3,4'-disulphonic acid in water is observed to be 37.5 days (900 hrs.) while in sediment it is 337.5 days (8100 hrs). Based on these half-life values of 4-aminoazobenzene-3,4'-disulphonic acid, it is concluded that the chemical is not persistent in water and persistent in sediment.
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