Registration Dossier
Registration Dossier
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EC number: 204-500-1 | CAS number: 121-82-4
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 hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 7.56 mg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
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
Conclusion on classification
The results from the acute aquatic toxicity studies are as follows:
LC50 (96 h) fish = 12.7 mg/l (measured concentration) with 95% confidence limits of 8 -16 mg/l.
EC50 (48 h) Daphnia = 22.1 mg/l (measured concentration) with 95% confidence limits of 18.4 - 24.3 mg/l.
ErC50 (72 h) algae was determined to be greater than the solubility limit of the substance (32.36 mg/l, measured concentration).
EC50 microorganisms was determined to be greater than 1000 mg/l.
Based on these results, the lowest acute E(L)C50 is higher than 1 mg/L. Therefore, the registered substance is not classified as acute 1 to aquatic organisms in accordance with the classification of the CLP.
In addition, adequate chronic toxicity data available for fish, crustacea and algae:
NOEC (28d) fish = 1.4 mg/l (measured concentration)
NOEC (7d) C. dubia = 3.64 mg/l (measured concentration)
ErC10 (72 h) algae = 23.12 mg/l (measured concentration) with 95% confidence limits of 15.23 – 33.44 mg/L.
CLP Classification proposal:
It is proposed to compare submission substance dataset to CLP environmental criteria laid down in CLP Regulation:
- Acute aquatic hazard: not classified. Reasoning: lowest E(L)C50 greater than 1 mg/L.
- Chronic aquatic hazard: not classified. Reasoning: Non-rapidly degradable substance for which there are adequate chronic toxicity data available, lowest chronic NOEC or EC10 value greater than 1 mg/L.
Conclusion on classification:
- according to Directive 67/548/EEC the substance RDX is not classified hazardous to the aquatic environment.
- according to the CLP Regulation 1272/2008 the substance RDX is not classified 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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