Registration Dossier
Registration Dossier
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EC number: 204-650-8 | CAS number: 123-77-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The results from the aquatic toxicity studies are as follows:
LC50 (96 h) fish = >50 mg/L
EC50 (48 h) Daphnia = 12 mg/L
ErC50 (72 h) algae = >36.1 mg/L
EC50 microorganisms was determined to be 800 mg/L
Acute toxicity
LC/EC50 values are all greater than 1 mg/L therefore, according to Table 4.1.0(a) of the CLP regulation, the substance is not classified for acute (short-term) aquatic hazard.
.Chronic Toxicity
NOEC 21 day Daphnia = 2.89 mg/L
NOEC algae = 7.2 mg/L
NOEC fish = >11.9 mg/L (calculated) - see waiver for fish long-term toxicity test attached below.
Not readily biodegradable
According to Figure 4.1.1 of the CLP regulation, for substances where adequate chronic toxicity data are available for all three tropic levels and are not readily biodegradable, classification is undertaken in accordance with Table 4.1.0(b)(i).
Chronic NOECs are all greater than 1 mg/L, therefore, according to Table 4.1.0(b)(i) of the CLP regulation the substance is not classified for long-term hazard to the aquatic environment.
Based on the aquatic toxicity EC/LC50 values all greater than 10mg/l and the NOEC for long term toxicity all greater than 1mg/L the substance is classified as follows:
- according to Directive 76/548/EEC the substance is not classified as dangerous to the aquatic environment
- according to the CLP regulation 1272/2008 the substance is not classified as hazardous to the aquatic 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.
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