Registration Dossier
Registration Dossier
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EC number: 271-896-0 | CAS number: 68611-47-2
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)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
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:
- Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
- EC Number:
- 271-896-0
- EC Name:
- Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
- Cas Number:
- 68611-47-2
- Molecular formula:
- Zn2SiO4:Mn
- IUPAC Name:
- Silicic Acid (H4SiO4), Zinc Salt (1: 2), Manganese-Doped
Constituent 1
Test solutions
- Vehicle:
- yes
- Remarks:
- Dilution water - M4
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 171.2 mg.L-1 CaCO3
- Test temperature:
- 20.1 to 20.3°C
- pH:
- 7.7 to 7.8
- Dissolved oxygen:
- 8.0 to 8.1 mg.L-1
- Nominal and measured concentrations:
- 100 mg.L-1
- Reference substance (positive control):
- yes
- Remarks:
- Potassium dichromate
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Results with reference substance (positive control):
- 24h EC50: 1.03 mg/L
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
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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