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Diss Factsheets
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EC number: 292-932-1 | CAS number: 91031-31-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- migrated information: read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- 15 Apr - 19 Apr 1996
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study with acceptable restrictions. No analytical dose verification.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Department of Health of the Government of the United Kingdom
Test material
- Reference substance name:
- Ethylene distearate
- EC Number:
- 211-014-3
- EC Name:
- Ethylene distearate
- Cas Number:
- 627-83-8
- Molecular formula:
- C38H74O4
- IUPAC Name:
- ethane-1,2-diyl dioctadecanoate
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: 100 mg of the test substance was dissolved in 10 mL of the solubiliser tetrahydrofuran to give a 100 mg/10 mL solvent stock solution. An aliquot (3.0 mL) of this initial stock solution was dissolved in a further 10 mL (final volume) of solvent to prepare a 30 mg/10 mL secondary solvent stock solution. An aliquot (2.0 mL) of this was directly dispersed in 20 L of dechlorinated tap water to give a final test concentration of 0.30 mg/L.
- Eluate: No
- Differential loading: No
- Controls: one control (only test medium) and one solvent control (100 µL tetrahydrofuran/L) were used
- Chemical name of vehicle: tetrahydrofuran
- Concentration of vehicle in test medium (stock solution and final test solution(s) including control(s)): 100 µL/L
- Evidence of undissolved material: Precipitation of the test material at test concentrations in excess of 0.30 mg/L as obtained in the range-finding study.
Test organisms
- Test organisms (species):
- Oncorhynchus mykiss (previous name: Salmo gairdneri)
- Details on test organisms:
- TEST ORGANISM
- Common name: rainbow trout
- Source: obtained from Donnington Fish Farm, Upper Swell, Gloucestershire, UK
- Length at study initiation: 5.0 cm ± 0.3 cm
- Weight at study initiation: 1.62 g ± 0.33 g
- Feeding during test: none
ACCLIMATION
- Acclimation period: from 08 Apr 1996 - 15 Apr 1996
- Acclimation conditions: same as test conditions
- Type and amount of food: fed with commercial trout pellets
- Health during acclimation: less than 1% (mortality)
Study design
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 96 h
Test conditions
- Test temperature:
- 14 °C
- pH:
- 7.7 - 8.0
- Dissolved oxygen:
- 9.2 - 9.7 mg/L
- Nominal and measured concentrations:
- Nominal: 0, 0.3 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: glass exposure vessels
- Type: covered to reduce evaporation
- Material, size, headspace, fill volume: glass, 20 L, headspace: 0 L, fill volume: 20 L
- Aeration: aerated via narrow bore glass tubes
- Renewal rate of test solution (frequency/flow rate): renewed every day
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 1
- No. of vessels per vehicle control (replicates): 1
- Biomass loading rate: 0.81 g/L
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: Laboratory tap water dechlorinated by passage through an activated carbon filter was used with a total hardness of approx. 100 mg/L as CaCO3.
- Total organic carbon: 1 mg/L
- Chlorine: 0.16 mg/L
- Conductivity: 405 µS/cm
OTHER TEST CONDITIONS
- Photoperiod: 16 h light / 8 h dark
EFFECT PARAMETERS MEASURED: Mortality and behavioural abnormalities were recorded after 3, 6, 24, 48, 72 and 96 h after the start of exposure
TEST CONCENTRATIONS
- Justification for using less concentrations than requested by guideline: No effects in the range finding study up to the limit of water solubility were observed. Thus, a limit test was performed.
- Range finding study
- Test concentrations: control - solvent control - 0.03 mg/L - 0.3 mg/L
- Results used to determine the conditions for the definitive study: No effects were observed in the range-finding study. - Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 0.3 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 0.3 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- - Behavioural abnormalities: No behavioural abnormalities were observed
- Mortality of control: 0%
- Any observations (e.g. precipitation) that might cause a difference between measured and nominal values: During prelimary solubility trials concentrations above 0.30 mg/L resulted in precipitation of the test substance on the water surface.
Any other information on results incl. tables
- Sublethal observations / clinical signs:
No behavioural abnormalities and effects of the solubiliser were observed in the solvent control.
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.