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EC number: 244-449-2 | CAS number: 21573-31-9
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-09-07 to 2017-10-13
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 310 (Ready Biodegradability - CO2 in Sealed Vessels (Headspace Test)
- Deviations:
- no
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: aerobic sludge of the mixed treatmant plant of urban (66%) and industrial (34%) liquid sewage
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): sample of aerobic sludge of the mixed treatmant plant of urban (66%) and industrial (34%) liquid sewage situated at San Rocco - Monza (MB), Italia
- Storage conditions: aerobic
- Pretreatment: The mud samples have been analysed to check ity ability to form colony units, before their use. Than the mud sample has been centrifuged, washed and analyzed to quantify the suspended solids concentration for inoculum preparation
- Concentration of suspended solids: 4 mg/L - Duration of test (contact time):
- 28 d
- Initial conc.:
- 19.66 mg/L
- Based on:
- TOC
- Parameter followed for biodegradation estimation:
- other: percentage ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning
- Details on study design:
- TEST CONDITIONS
- Composition of medium: according to guideline
- Test temperature: 20°C
- Suspended solids concentration: 4mg/L
- Continuous darkness: yes
TEST SYSTEM
- Culturing apparatus: glass bottles with hermetic seal
- Number of culture flasks/concentration: 17
- Method used to create aerobic conditions: stirring
SAMPLING
- Sampling frequency: TOC (total organic carbon) at test start, TIC (total iorganic carbon) weekly
- Sampling method: 3 replica per week per treatment
CONTROL AND BLANK SYSTEM
used treatments: Blank, test sample, Reference substance, Test sample + reference substance (not considered because the substance is resulted biodegradable) - Reference substance:
- other: 1-Octanol
- Parameter:
- other: % degradation (ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning)
- Value:
- 1
- Sampling time:
- 1 d
- Key result
- Parameter:
- other: % degradation (ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning)
- Value:
- 62
- Sampling time:
- 7 d
- Parameter:
- other: % degradation (ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning)
- Value:
- 82
- Sampling time:
- 14 d
- Parameter:
- other: % degradation (ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning)
- Value:
- 97
- Sampling time:
- 21 d
- Parameter:
- other: % degradation (ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning)
- Value:
- 88
- Sampling time:
- 28 d
- Results with reference substance:
- The reference substance was degraded by 85% (degradation based onratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning) after 7 days.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- 7-Octen-1-al is considered readily biodegradable, because its level of biodegradability was 62% after 7 days (10 days window fulfilled) and reached 88% biodegradation within 28 days.
- Executive summary:
The biodegradation of 7-Octen-1-al in water was determined in a GLP study according to OECD 310. % degradation was measured as ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning. An initial concentration of 19.66 mg/L of OEL was inserted in the test vessels containing aerobic sludge of the mixed treatmant plant of urban (66%) and industrial (34%) liquid sewage. A degradation of 62% was determined within the 10 days window and reached a biodegradation of 88% after 28 days. The substance is therefore considered readily biodegradable.
Reference
Description of key information
Readily biodegradable: 88% after 28 days (62% within the 10 days window)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The biodegradation of 7-Octen-1-al in water was determined in a GLP study according to OECD 310. % degradation was measured as ratio between the value of inorganic carbon measured and the value of organic carbon added at the beginning. An initial concentration of 19.66 mg/L of OEL was inserted in the test vessels containing aerobic sludge of the mixed treatmant plant of urban (66%) and industrial (34%) liquid sewage. A degradation of 62% was determined within the 10 days window and reached a biodegradation of 88% after 28 days. The substance is therefore considered readily biodegradable.
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