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EC number: 292-960-4 | CAS number: 91031-57-1
- 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
Sediment toxicity
Administrative data
Link to relevant study record(s)
- Endpoint:
- sediment toxicity: short-term
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- Refer to read across justification provided in IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Duration:
- 10 d
- Dose descriptor:
- LC50
- Effect conc.:
- > 1 439.41 mg/kg sediment dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Remarks on result:
- other:
- Remarks:
- Source: CAS 85049-37-2, BASF, 2000, C. volutator
- Conclusions:
- Based on the available LC50 (10.0 d) > 1439.41 mg/kg sediment dw (nominal, OSPARCOM, RA CAS 85049-37-2), the target substance is expected to exhibit very low toxicity to sediment organisms.
- Endpoint:
- sediment toxicity: short-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 28 Jan - 07 Feb 2000
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: National guideline with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: OSPARCOM 1995, Paris Commission Guidelines for conducting sediment toxicity tests with the amphipod Corophium volutator
- GLP compliance:
- yes
- Analytical monitoring:
- no
- Vehicle:
- no
- Details on sediment and application:
- PREPARATION OF SPIKED SEDIMENT
- Pooling or mixing of different substrates: Natural sediment collected and wet sieved through 0.6 mm mesh sieves, then allowed to settle in tall polyethylene containers; The supernatant is decanted and the sediment stored at 4°C
- Method of mixing: Sediment is homogenised, a subsample is taken for wet and dry weight determination
- Details of spiking: test substance mixed into dry sediment using solvent, dried sediment is then incorporated with wet sediment (mixing container), mixing vessel placed on platform shaker at 150 rpm for 3 hours and then equally distributed among the replicate vessels
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): acetone, ethano or triethylene glycol (not further clarified in report)
- Test organisms (species):
- Corophium volutator
- Details on test organisms:
- TEST ORGANISM
- Source: collected from site in the Bay of Suckquoy, near Sebay Farm in Orkney
- Details on collection: Organisms gently sieved and held in plastic containers; in laboratory animals are transferred to ambient water to polythene tanks of approx. 200 L capacity, with gentle aeration at 15°C;
- Length of animals at beginning of exposure: approx. 5 mm length
ACCLIMATION
- Acclimation period: 3 to 14 days;
- Acclimation conditions (same as test or not): no
- Type and amount of food: detrital material
- Health during acclimation (any mortality observed): Mortality 4% - Study type:
- laboratory study
- Test type:
- static
- Water media type:
- saltwater
- Type of sediment:
- natural sediment
- Limit test:
- no
- Duration:
- 10 d
- Exposure phase:
- total exposure duration
- Post exposure observation period:
- not relevant
- Hardness:
- no data
- Test temperature:
- 14.0-15.9 °C (14.2-16.4 in control)
- pH:
- 7.75-8.03 (7.78-8.00 in control)
- Dissolved oxygen:
- 95-98% (94-97% in control)
- Salinity:
- Conductivity: 48.9-55.5 mS/cm (approx. 3.75% salinity at 15°C)
- Ammonia:
- no data
- Nominal and measured concentrations:
- Nominal: 14.6, 146.75, 466.26, 1439.41 and 13932.35 mg/kg dry weight
- Details on test conditions:
- TEST SYSTEM
- Test container (material, size): 1L glass beaker
- Sediment volume: 150 mL (approx. 2 cm depth of sediment)
- Overlying water volume: 850 mL
- Depth of sediment and overlying water: approx. 2 cm sediment
- Aeration: Stream of air bubbles released at a depth of 6 cm
EXPOSURE REGIME
- No. of organisms per container (treatment): 20
- No. of replicates per treatment group: 3
- No. of replicates per control / vehicle control: 5
OVERLYING WATER CHARACTERISTCS
- Type of water (e.g. deionized, ground water, sea water, Elendt medium acc. to OECD 219): Natural seawater, UV sterilised and filtered to 1 µm
SOURCE OF NATURAL SEDIMENT
- Location and description of sampling site: Bay of Suckquoy, near Sebay farm in Orkney
HANDLING OF NATURAL SEDIMENT
- Storage conditions: 4°C
OTHER TEST CONDITIONS
- Photoperiod: constant dim illumination
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : mortality (missing animals counted as dead)
TEST CONCENTRATIONS
- Spacing factor for test concentrations: 5 to 10 - Reference substance (positive control):
- no
- Duration:
- 10 d
- Dose descriptor:
- LC50
- Effect conc.:
- > 1 439.41 mg/kg sediment dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Details on results:
- - Mortality of test animals at end of exposure period: 53% of the animals were dead at the test substance concentration of 13932.35 mg/kg sed dw
- No LC50 was determined in the report
Referenceopen allclose all
The mortality of Corophium volutator at the nominally tested concentrations in %:
|
Mortality in % |
||
Concentration in mg/kg dw |
Replicate 1 |
Replicate 2 |
Replicate 3 |
14.6 |
0 |
0 |
0 |
146.75 |
10 |
0 |
0 |
466.26 |
0 |
0 |
5 |
1439.41 |
15 |
10 |
15 |
13932.35 |
55 |
50 |
55 |
Description of key information
LC50 (10 d) > 1439 mg/kg sediment dw (OSPARCOM, C. volutator); read-across
Key value for chemical safety assessment
Additional information
There is no study available assessing the sediment toxicity of the target substance Fatty acids, C16-18, isononyl esters (CAS 91031-57-1). Therefore, read-across to the structurally related source substance Fatty acids, C16-18 and C18-unsatd., 2-ethylhexyl esters (CAS 85049-37-2) was conducted in accordance with Regulation (EC) No 1907/2006 Annex XI, 1.5. The source substance is considered a suitable representative for the assessment of the sediment toxicity of the target substance. A detailed read-across justification is provided in IUCLID section 13.
The available study was conducted according to the OSPARCOM guideline (Paris Commission Guidelines for conducting sediment toxicity tests with the amphipod Corophium volutator, 1995) and GLP. The marine test organism Corophium volutator was exposed to five, nominal test item concentrations ranging from 14.6 to 13932.35 mg/kg sediment dry-weight in a static system with natural sediment for 10 d. The derived LC50 value was > 1439.41 mg/kg sediment dry-weight.
Based on the structural and chemical similarity of the target and source substance, the target substance is expected to exhibit a similar ecotoxicological profile. Therefore, it can be concluded that Fatty acids, C16-18, isononyl esters (CAS 91031-57-1) has very low toxicity to sediment organisms. Moreover, the substance is readily biodegradable and the available acute and chronic data indicate no hazard to aquatic or terrestrial organisms. Therefore, long-term testing of sediment organisms is not considered necessary.
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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