Registration Dossier
Registration Dossier
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EC number: 264-867-9 | CAS number: 64396-12-9
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- long-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21 day Daphnia reproduction, with 48 hour range-finder study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Although evaluation of the anionic and cationic parts of the slat suggest low hazard, a prolonged test has been performed to confirm low hazard.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 211 (Daphnia magna Reproduction Test)
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Material used for testing approximately 50% in water
Results have been adjusted to reflect active substance - Analytical monitoring:
- yes
- Details on sampling:
- Water samples were taken from the control and each test group for immediate quantitative analysis. Samples of the fresh preparations were taken on Days 0, 7, 13 and 20 and of the expired test preparations on Days 1, 8, 14 and 21
- Vehicle:
- yes
- Details on test solutions:
- Supplied in water
- Test organisms (species):
- Daphnia magna
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 21 d
- Nominal and measured concentrations:
- Range-finder test of up to 10 mg/l test substance (5 mg/l actives)
Main study concentrations of 0.00625, 0.0125, 0.025, 0.050 and 0.10 mg test item/litre (ie up to 0.05 mg/l actives) - Details on test conditions:
- Dissolved oxygen concentrations, pH and temperature were recorded before and after each test media renewal
- Duration:
- 21 d
- Dose descriptor:
- EC10
- Effect conc.:
- ca. 0.004 mg/L
- Nominal / measured:
- meas. (geom. mean)
- Conc. based on:
- act. ingr.
- Basis for effect:
- reproduction
- Duration:
- 21 d
- Dose descriptor:
- EC10
- Effect conc.:
- ca. 0.011 mg/L
- Nominal / measured:
- meas. (geom. mean)
- Conc. based on:
- act. ingr.
- Basis for effect:
- immobilisation
- Validity criteria fulfilled:
- yes
- Conclusions:
- The toxicity was more severe than expected from original acute studies performed in salt water
No mechanisms for the apparent toxicity has been possible to determine
Reference
Description of key information
Very toxic to Daphnia
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- EC10
- Effect concentration:
- ca. 0.011 mg/L
Additional information
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.
