Registration Dossier
Registration Dossier
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EC number: 205-758-8 | CAS number: 150-38-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.44 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.2 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.044 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.12 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 43 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 34.584 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 3.458 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:
- 0.157 mg/kg soil dw
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
In order to compare the experimental results among the different EDTA species the results were related to the H4-EDTA by molecular-weight correction.
Degradation
Biodegradation: not readily biodegradable but ultimately biodegradable under special conditions.
Bioaccumulation
Log Kow: -3.8 at ambient temperature at pH value of 7.2 to 8.7 (OECD 105, 107 and 117)
Aquatic acute toxicity
For fish: 96 h, LC50 (Lepomis macrochirus): >100 mg/L under environmental relevant conditions
For aquatic invertebrates: 48 h, EC50 (Daphnia magna): 140 mg/L
For algae/aquatic plant: 72 h, ErC50 (Desmodesmus subspicatus): >100 mg/L
Aquatic chronic toxicity (for each species only one key information)
For fish: no data available
For aquatic invertebrates: 21 d, NOEC (Daphnia magna): 25 mg/L
For algae/aquatic plant: 72 h, EC10 (Desmodesmus subspicatus): >100 mg/L
Based on the data above, the substance isnot readily biodegradable but ultimately biodegradable under special environmental conditions.The acute aquatic toxicity L(E)C50 values are > 100 mg/L for fish, invertebrates and algae. Therefore, the substance does not need to be classified and labelled as acute aquatic hazardous according to the consolidated version of Regulation (EC) No. 1272/2008 (CLP).
Valid chronic toxicity data are available. The lowest NOEC of 25 mg/L was determined for invertebrates. Therefore, the substance does not need to be classified and labelled for long-term aquatic hazards according to the consolidated version of Regulation (EC) No. 1272/2008 (CLP) and all further amendments.
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