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EC number: 292-605-3 | CAS number: 90640-84-9 A complex combination of hydrocarbons produced by the distillation of coal tar and boiling in the range of approximately 240°C to 280°C (464°F to 536°F). Composed primarily of acenaphthene, naphthalene and alkyl naphthalene.
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The acute EC50 for algae of wash oil (composite sample No. 05) itself was found to be 25 mg/L, based on the loading, EL50.
In a separate study using acenaphthene, the EC10 was 38 µg/L, based on measured concentrations of acenaphthene as a key component of wash oil.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 25 mg/L
- EC10 or NOEC for freshwater algae:
- 38 µg/L
Additional information
Data on toxicity to aquatic algae are available for creosote oil, acenaphthene fraction itself as well as for the wash oil components acenaphthene (marker substance, see Chapter 7.1,) and fluorene. Hence, data for wash oil and for acenaphthene and fluorene are presented.
For wash oil composite sample No. 05, a 72-h NOELR (No-observed-effect-loading rate) of 10 mg/L nominal (corresponding EL50: 25 mg/L) on unicellular freshwater green algae Desmodesmus subspicatus was observed under open test conditions in a static test system (Aniol et al. 2007). Concentration of dissolved material in the aqueous solutions (WAF) were determined to be ca. 2 mg TOC/L for the 10 mg/L loading and ca. 7 mg TOC/L for the 50 mg/L loading.
No values for marine organisms are available.
The 72-h EC10 values concerning biomass and growth rate are reported for acenaphthene (marker substance) and fluorene as basic component of wash oil. The analytical values were 38 and 82 µg/L, respectively, based on measured concentrations and were determined on the freshwater green alga Pseudokirchneriella subcapitata in a static test system (Bisson et al., 2000). Toxicity of acenaphthene to freshwater green algae was higher than that of fluorene.
As already observed for fish short-term toxicity, toxicity determined for wash oil as whole is considerably lower than toxicity of individual wash oil constituents.
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