Registration Dossier
Registration Dossier
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EC number: 908-531-8 | CAS number: -
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Justification for type of information:
- For this endpoint, an analysis based on the components is performed. Based on SIDS report on Sodium carbonate no acute toxicity was observed on the three trophic levels, including the invertebrates. Based on the SIDS report and EU-RAR about sodium hydroxide, no acute toxicity was observed on the three trophic levels, including the invertebrates. For Na2S, based on registration dossier data, acute invertebrate toxicity was observed, with a LC50 of 0.02 mg/L. Several other data are available in the registration dossier. The conclusion is that for the multi-constituent, an acute invertebrate toxicity is taken into account based on Na2S (read across based on hydrogen sulfide).
Data source
Reference
- Reference Type:
- publication
- Title:
- Factors influencing acute toxicity estimates of hydrogen sulfide to freshwater invertebrates
- Author:
- Oseid et al
- Year:
- 1 974
- Bibliographic source:
- Water research
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPP 72-2 (Aquatic Invertebrate Acute Toxicity Test)
- Deviations:
- not specified
- GLP compliance:
- no
Test material
- Reference substance name:
- Hydrogen sulphide
- EC Number:
- 231-977-3
- EC Name:
- Hydrogen sulphide
- Cas Number:
- 7783-06-4
Constituent 1
Results and discussion
Effect concentrations
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 0.02 mg/L
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The LC50 (96h) of the substance based on Na2S (read across of H2S) is 0.02 mg/L
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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