Registration Dossier
Registration Dossier
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EC number: 266-040-8 | CAS number: 65997-04-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.29 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 2 317.75 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 231.775 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 462 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Acute studies are available for fish,Daphniaand algae for various members of this category. Differences have been observed between substances reacted with fumaric acid and substance reacted with maleic anhydride when tested in ecotoxicological studies. Therefore, read across between fumarated and maleated substances has not been conducted for ecotoxicity endpoints.
Environmental classification is assessed based data for the substance itself, where available, or using read across from another fumarated or maleated substance where data on the substance itself is not available.
However, PNECs have been derived based on pooled data, with one set of PNECs derived to cover all maleated substances within the category and one set to cover all fumarated substances. The most sensitive result for any fumarated rosin substance has been used as the key value for PNEC derivation.
Conclusion on classification
The available ecotoxicity results indicate that there may be differences in environmental toxicity between substances reacted with fumaric acid and substances reacted with maleic anhydride, although the reasons for this are not clear. Therefore, although maleated and fumarated substances are structurally similar and it is appropriate for these substances to be considered within a single category, for ecotoxicity endpoints read across is not conducted between fumarated and maleated substances.
Acute fish, Daphnia and algal studies are available for fumarated substances in this category. The EL50 values from these studies are all >100 mg/L. However, as substances in this category are of low solubility, are not readily biodegradable and have log Kow values of >4 a "safety net" classification of Chronic Category 4 is assigned to rosin fumarated.
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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