Registration Dossier
Registration Dossier
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EC number: 215-158-8 | CAS number: 1308-14-1
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Study period:
- 1985
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Information from a peer reviewed Assessment Report.Chromium(III) hydroxide is insoluble between pH 6.8 and 11 (see section 4.8). Under conditions < pH 6.8 hydrolysis takes place and at > pH11.5 hydroxocomplexes are formed. The main toxic principle of these solutions < pH6.8 and > pH11.5 is dissolved Cr(III). Therefore Chromium(III) nitrate is used as supporting substance.
Data source
Reference
- Reference Type:
- other: Peer reviewed assessment report
- Title:
- Unnamed
- Year:
- 2 009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Principles of method if other than guideline:
- data from peer-reviewed assessment report
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Chromium trinitrate
- EC Number:
- 236-921-1
- EC Name:
- Chromium trinitrate
- Cas Number:
- 13548-38-4
- Reference substance name:
- Chromium(III)nitrate
- IUPAC Name:
- Chromium(III)nitrate
Constituent 1
Constituent 2
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- water flea
Study design
- Test type:
- not specified
- Water media type:
- freshwater
Test conditions
- Hardness:
- Hardness ranging from 52 to 215 mg calcium carbonate/l.
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 17 - 59 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- other: mg chromium/L
- Basis for effect:
- mobility
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Acute toxicity values of chromium(III) nitrate varied with hardness for the Water flea (Daphnia magna), 48h EC50 = 17 - 59 mg chromium/L. Hardness ranged from 52 to 215 mg calcium carbonate/L.
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