Registration Dossier
Registration Dossier
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Reaction mass of Amines, C10-14-branched and linear alkyl, [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphthalenolato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenolato(2-)]chromate(1-) and Amines, C10-14-branched and linear alkyl, bis[1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphthalenolato(2-)]chromate(1-) and Amines, C10-14-branched and linear alkyl, bis[1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenolato(2-)]chromate(1-)
EC number: 939-191-9 | CAS number: -
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to aquatic plants.
Key value for chemical safety assessment
Additional information
The toxicity of Orasol Black X51 to aquatic plants was investigated in a 7d growth test performed with duckweed (Lemna gibba) according to OECD TG 221 (BASF SE, 2017; Rep. no.: 63E0074/16E025). The ErL50 was determined to be >320 mg/L (nominal). It can be concluded, that the substance is with high probability acutely not harmful to aquatic plants.
Orasol Black X51 is strongly coloured. According to REACH guidance chapter R.7b (ECHA, 2017) the 7-d Lemna growth test avoids the problem since the fronds grow at the water surface.
Due to the 'difficult substance testing issues', the chemical safety assessment of Orasol Black X51 (e.g. classification, derivation of PNECs) is, therefore, based on the available data on aquatic plants other than algae (Lemna gibba, BASF SE, 2017; Rep. no.: 63E0074/16E025 in accordance with REACH guidance chapter R.7b (ECHA, 2017).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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