Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

No acute aquatic toxicity has been obversed in studies on oTDA-EO-PO in Fish, Daphnia and Algae.
A long-term study in Daphnia (using the structurally related substance oTDA-PO) indicates low chronic aquatic toxicity of the registration item.


 

Additional information

Fish


The acute toxicity of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane to Fish (Danio rerio) was tested according to EU method C.1 'Acute toxicity for Fish' (2008). No toxic effects were observed during 96 hours exposure at a limit test concentration of 100 mg/L (Currenta, 2009).


Aquatic invertebrates


There are two studies available that determined the EC50 in aquatic invertebrates. Both studies assessed the acute toxicity of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane according to OECD 202 and EU method C.2 ' acute toxicity for Daphnia' (2008). In both studies no toxic effects against D. magna was observed during 48 hours exposure at a limit test concentration of 100 mg/L (Currenta, 2009 and BASF, 2009). Thus, the EC50 of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane is > 100 mg/L.
Long term toxicity to aquatic invertebrates is addressed via a read across approach. The 21 day-EC10 of the structurally related substance ortho-Toluenediamine, propoxylated in a OECD 211 guideline study is 2.5 mg/l (nominal) for reproduction.
(For details and justification of this read-across, please see information provided in the corresponding Endpoint Study record under 6.1.4)


Algae


The acute toxicity of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane to Algae (Desmodesmus subspicatus) was tested according to EU method C.3 'Alga, Inhibition test' (2009). During 72 hours exposure an ErC50 of > 100 mg/L and EC10 of 63.4 mg/L was determined (Currenta, 2009).


Microorganisms / Sewage Treatment Plant (STP)


The potential toxic effect of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane was tested according to EU method C.11, which is equal to OECD Guideline 209. Up to the highest nominal concentration of 1000 mg/L tested, Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane showed 2.0% respiration inhibition on activated sludge within 3 hours (Currenta, 2009).