Registration Dossier
Registration Dossier
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EC number: 680-002-1 | CAS number: 145022-44-2
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 1-ethyl-3-methyl-1H-imidazol-3-ium trifluoromethanesulfonate
- EC Number:
- 680-002-1
- Cas Number:
- 145022-44-2
- Molecular formula:
- C6 H11 N2. C F3 O3 S
- IUPAC Name:
- 1-ethyl-3-methyl-1H-imidazol-3-ium trifluoromethanesulfonate
- Details on test material:
- Identification: EMIM Triflat
Chemical name: 1H-Imidazolium, 3-ethyl-1-methyl-, 1,1,1-trifluoromethanesulfonate (1:1)
Physical form: liquid
Appearance: yellowish, clear
Water solubility: miscible
Purity: 98.8% (treated as 100% pure)
Composition: EMIM Triflat Anion: 56.2 g/100 g
EMIM Triflat Kation: 42.6 g/100 g
Density: 1.3895 g/cm3 (20°C), 1.3688 g/cm3 (45°C)
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- Sampling at the start of the exposure (0h) was carried out immediately after preparation and before application of the daphnids. At the end of the exposure (48h), samples were taken directly from the test vessels, which contained the daphinds.
Test solutions
- Details on test solutions:
- 5 test item concentrations, prepared by diluting the stock solution of 484mg/l with dilution water, were tested as follows: 20.7 - 45.5 - 100 - 220 - 484mg/l
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Daphnia magna STRAUS, Clone 5
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
Test conditions
- Test temperature:
- 19-20°C
- pH:
- 7.6-8.0
- Dissolved oxygen:
- 7.65-9.09mg/l
- Reference substance (positive control):
- yes
- Remarks:
- Potassium dichromate p.a.
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 222 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 100-484
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
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