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EC number: 902-053-3 | CAS number: -
Formula for the calculation of PNECsed using the equilibrium partitioning approach for sediment (as shown in the REACH guidance, chapter R16):
PNEC(sed) = (Ksed-water x PNEC(aqua) / RHOsed) * 1000
PNEC(sed) Predicted No Effect Concentration in sediment [mg/kg]: as shown above (equation R10.2).
Kp-sed [l/kg]: 0.231 (equation R16 -12)
Ksusp-water partition coefficient freshwater sediment / water [m3/m3]: 0.929 (equation R16 -13)
RHOsed bulk density of freshwater sediment matter [kg/m3]: 1150
PNECaqua Predicted No Effect Concentration in water [mg/kg]: as shown above.
PNEC marine predicted to be 0.658mg/kg based on same method and the PNEC(marine) shown above.
The PNEC oral is derived using the critical oral mammalian NOAEL (in mg/kg bw ) as a starting point. This is then converted to a NOEC (in mg/kg food) using the conversion factors in table R10-12 of the guidance from which the PNEC is derived by using the appropriate assessment factor in table R10 -13.
The values derived as PNECs above are fully in line with observed results for aquatic toxicity as this substance shows only effects, if at all, to aquatic organisms way above all thresholds for classification & labelling (100 mg/l) for some species even orders of magnitudes above. In addition the substance is readily biodegradable as shown in the data sections and a hazard to aquatic organisms is not expected.
Based on data from the two constituents it can be concluded that the reaction mass does not need to be classified for envrionmental properties according to DSD or CLP.
The acute toxicity of ethanol to aquatic species is >100mg/l for all trophic levels. This coupled with its ready biodegradability mean that it does not meet the criteria for classification.
Based on available data substance is neither classifiable for acute nor chronic aquatic toxicity according to CLP (EC No 1272/2008)
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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