Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 268-018-3 | CAS number: 67989-88-2
Sediment toxicity
Administrative data
- Endpoint:
- sediment toxicity: short-term
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given: acceptable publication
Data source
Reference
- Reference Type:
- publication
- Title:
- Untersuchungen ueber die akute toxische Wirkung von Nitrilotriessigsaeure (NTA)
- Author:
- Jancovic M, Mann H
- Year:
- 1 969
- Bibliographic source:
- Arch Fischereiwiss 20, 178-181
Materials and methods
- Principles of method if other than guideline:
- Method: other: no data
- GLP compliance:
- no
Test material
- Reference substance name:
- Edetic acid
- EC Number:
- 200-449-4
- EC Name:
- Edetic acid
- Cas Number:
- 60-00-4
- Molecular formula:
- C10 H16 N2 O8
- IUPAC Name:
- 2,2',2'',2'''-(ethane-1,2-diyldinitrilo)tetraacetic acid
- Details on test material:
- Test substance: Edetic acid (EDTA)
Product name: Idranal II
Purity/content: no data
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
no data available
Sampling and analysis
- Analytical monitoring:
- not specified
- Details on sampling:
- no data available
Test substrate
- Vehicle:
- not specified
- Details on sediment and application:
- no data available
Test organisms
- Test organisms (species):
- Tubifex tubifex
- Details on test organisms:
- no data available
Study design
- Study type:
- laboratory study
- Test type:
- static
- Water media type:
- freshwater
- Type of sediment:
- not specified
- Limit test:
- no
Exposure duration
- Duration:
- 24 h
- Exposure phase:
- total exposure duration
- Post exposure observation period:
- no data available
Test conditions
- Hardness:
- 12 degree German hardness
- Test temperature:
- 18 - 21 °C
- Details on test conditions:
- The animals were held in glass dishes with or without aeration.
Sufficient oxygen content of the test water was ensured.
Tap water from the city of Hamburg was used in all freshwater experiments.
Over 100 animals were used per experiment.
A second test series was run in parallel.
The animals were observed for at least 24 hours, in some cases even 48 hours and lethality were recorded. - Reference substance (positive control):
- not specified
Results and discussion
Effect concentrations
- Duration:
- 24 h
- Dose descriptor:
- LC100
- Effect conc.:
- 380 other: mg/l
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
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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