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EC number: 247-384-8
CAS number: 25973-55-1
In accordance with column 2 of REACH Annex
VIII, the hydrolysis test (required in section 188.8.131.52) does not need to
be conducted, as the test substance is highly insoluble in water (< 1
µg/L at 20 °C). As no functional groups indicate the potential for
hydrolysis, no hydrolysis is expected.
The ready biodegradability of the test item
was assessed over a 28 day period by the modified Sturm test (OECD
301B). The nominal test concentrations were 10 and 20 mg/L. The test
material attained up to 8 and 2 % biodegradation after 28 days whereas
the positive control substance (Aniline) was 94.4 % degraded after 28
days. These results indicate that the test item cannot be classified
readily biodegradable under conditions of the test.
The test substance was found to be poorly
biodegradable in an OECD 301B study. It is assumed that the results of
simulation studies would not reveal any different findings. Therefore,
simulation studies in water/sediment and soil are not provided.
bioconcentration factor in fish was investigated in two GLP studies with
carp according to OECD 305 completed 2000 and 2007.
The BCFs in
the first study ranged from 1120 to 2780 in the test concentration
0.001mg/L (nominal) and from 2300 to 5580 in the test concentration
0.0001mg/L (nominal) during 8 weeks. The
BCFs in the second study ranged during the exposure period of 60 days
from 570 to 1400 and from 620 to 1800 for the test concentrations of
0.0001mg/L and 0.00001 mg/L, respectively. Therefore,
it can be concluded that the substance has a BCF of above 5000.
The calculated Koc of 451200 L/kg indicates
immobility in soil and adsorption to suspended particles.
As the substance is furthermore not volatile
and poorly water soluble distribution to soil, sediment and sludge is
expected if released to environment.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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