Registration Dossier

Administrative data

Link to relevant study record(s)

Description of key information

Half life period of Tris(5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato(2-))dialuminium in water is observed to be 60 days (1440 hrs.) while in sediment it is 541.66 days (13000 hrs). Based on these half life values of Tris(5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato(2-))dialuminium, it is concluded that the chemical is not persistent in water and persistent in sediment.

Key value for chemical safety assessment

Half-life in water:
60 d
at the temperature of:
25 °C
Half-life in sediment:
541.66 d
at the temperature of:
25 °C

Additional information

Half life period of Tris(5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato(2-))dialuminium in water is observed to be 60 days (1440 hrs.) while in sediment it is 541.66 days (13000 hrs). Based on these half life values of Tris(5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato

(2-))dialuminium, it is concluded that the chemical is not persistent in water and persistent in sediment.