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Diss Factsheets
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EC number: 927-676-8 | CAS number: -
- 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
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- January 1986
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- This robust summary has a reliability rating of 2 because the study did not follow GLP and the test containers were open to the air, which allowed for some volatile loss of the test substance. The study followed a standard guideline and was conducted without deviations that would invalidate the study.
- Qualifier:
- according to guideline
- Guideline:
- other: Unpublished Environment Canada Guideline: Environmental Protection Service 1985; Laboratory for determining the acute lethality of a water-soluble fraction of mineral oil to rainbow trout. Environment Canada, Dartmouth, N.S. June 17.
- GLP compliance:
- no
- Analytical monitoring:
- yes
- Details on sampling:
- Samples for analyses were taken at test initiation and termination.
- Vehicle:
- no
- Details on test solutions:
- The treatment solution was prepared by adding one part of the test substance to nine parts dechlorinated tap water for a total volume of 100 L in 120 L cylindrical fiberglass tanks. The tanks were covered with a sheet of polyethylene, and the stock solution was mixed for 20 hours at room temperature with a vortex of approximately 25%. Mixing was performed using a magnetic stir plate and stir bar. After mixing, the solutions were allowed to separate for four hours and the Water Accommodated Fraction (WAF) was then siphoned from the bottom of the mixing vessel and added to the test vessels. Siphons were placed in the tanks prior to adding the test material. Analytical measurements confirmed components of the test material were present in the test solution.
- Test organisms (species):
- Oncorhynchus mykiss (previous name: Salmo gairdneri)
- Details on test organisms:
- Reported as former name, Salmo gairdneri. Juvenile trout were obtained from Loch Bras d'Or Salmon Farms in Baddeck, Nova Scotia, Canada. The fish had been maintained at a temperature of approximately 5 degrees C at the hatchery. The fish were kept in the testing laboratory in dechlorinated tap water. Prior to the start of the test, the holding water was increased in temperature to approximately 15 degrees C in 2 degrees C/day increments. Fish were fed daily until 24 hours prior to test initiation. The mean length of the fish was 45.9 mm, mean weight was 0.85 gm, and test loading was approximately 0.125 g fish/L. Fish were not fed during the exposure period.
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 96 h
- Post exposure observation period:
- None
- Test temperature:
- 15.5 to 19.2 degrees C for the test substance.
15.5 to 17.0 degrees C for the control. - pH:
- 6.4 to 6.8 for the test substance.
6.7 to 7.3 for the control. - Dissolved oxygen:
- 8.1 to 9.2 mg/L for the test substance.
7.6 to 10.5 mg/L for the control. - Salinity:
- Freshwater
- Nominal and measured concentrations:
- Water accomodated fractions were prepared by adding one part of the test substance to nine parts dechlorinated tap water for a total volume of 100 L in 120 L cylindrical fiberglass tanks. The nominal loading was 788,000 mg/L. The test substance concentration was 200 ppb at test initiation and 120 ppb at termination. The control measured 40 ppb at test initiation.
- Details on test conditions:
- Test vessels were 60 L circular polyethylene containers with 2 L of test solution per gram of fish per 24 hours of exposure, for approximately 60 L of solution open to the air. One replicate for the concentration and one replicate for the control were tested, each containing 10 fish.
- Reference substance (positive control):
- no
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LL0
- Effect conc.:
- 788 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LL50
- Effect conc.:
- > 788 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- No mortality was observed from a water soluble fraction of the test substance prepared at a loading of 788,000 mg/L.
- Reported statistics and error estimates:
- None were needed as there was no mortality.
- Validity criteria fulfilled:
- yes
- Conclusions:
- A water soluble fraction of the test substance prepared at a loading of 788,000 mg/L did not produce mortality to the fish, Oncorhynchus mykiss, during a 96-hour exposure period.
- Executive summary:
A water soluble fraction of the test substance prepared at a loading of 788,000 mg/L did not produce mortality to the fish, Oncorhynchus mykiss, during a 96-hour exposure period. Test systems were not covered during the exposure period, but analytical results showed that constituents of the test substance were present at test initiation and termination.
Reference
Description of key information
A water accommodated fraction of hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >88,444 mg/L and LL0 value of 88,444 mg/L with rainbow trout, Oncorhynchus mykiss. No mortality was observed in the treatment test system.
The water accommodated fraction of hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >1000 mg/L and LL0 value of 1000 mg/L with rainbow trout, Oncorhynchus mykiss. No mortality was observed in either the control or treatment test systems.
The data from the latter study are used as supporting, read-across data to hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics.
Key value for chemical safety assessment
Additional information
A water accommodated fraction of hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >88,444 mg/L and LL0 value of 88,444 mg/L with rainbow trout, Oncorhynchus mykiss. No mortality was observed in the treatment test system. The water accommodated fraction of hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >1000 mg/L and LL0 value of 1000 mg/L with rainbow trout, Oncorhynchus mykiss. No mortality was observed in either the control or treatment test systems. The data from the latter study are used as supporting, read-across data to hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics.
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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