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EC number: 947-862-2 | 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
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 17 Oct - 14 Nov 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Version / remarks:
- 1992
- GLP compliance:
- yes
Test material
- Reference substance name:
- Fatty acids C8-18 (even numbered), mono- and diesters with sucrose
- EC Number:
- 947-862-2
- Molecular formula:
- not applicable, substance is UVCB
- IUPAC Name:
- Fatty acids C8-18 (even numbered), mono- and diesters with sucrose
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Kurume central sewage treatment center (Kururne-shi, Fukuoka, Japan); sampled on 17 Oct 2017
- Storage conditions: After collection, the activated sludge was aerated at the test temperature until it was used for the test.
- Concentration of sludge: 1950 mg/L - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST CONDITIONS
- Composition of medium: according to guideline
- Test temperature: 22 °C
- pH: 7.4 (start), 7.3 - 7.7 (end)
- pH adjusted: yes; the pH of the mineral medium was adjusted to 7.4
- Suspended solids concentration: 30 mg/L
- Continuous darkness: yes
- Other: Each test solution was stirred with a stirrer.
TEST SYSTEM
- Culturing apparatus: Glass exposure vessels with a fill volume of 300 mL
- Number of culture flasks/concentration: 2
- Measuring equipment: Automated oxygen consumption measuring equipment
- Details of trap for CO2 and volatile organics if used: Soda lime was used to absorb CO2.
SAMPLING
- Sampling frequency: O2 consumption was measured continuously.
- Sampling method: Automated measuring system.
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes, two bottles
- Toxicity control: yes, one bottle
- Abiotic sterile control: no
- Reference substance: yes, one bottle
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 88
- Sampling time:
- 28 d
- Remarks on result:
- other: Mean of two replicates.
- Details on results:
- At the end of the 10-day window the substance was degraded to 64%: Thus, the pass level is reached and the substance is considered to be readily biodegradable according to the OECD criteria.
No insoluble particles were observed in the test solutions throughout the test.
BOD5 / COD results
- Results with reference substance:
- The reference substance was degraded to 79% after 14 d and 90% after 28 d.
Any other information on results incl. tables
Table 1: Degradation of test item, reference substance and toxicity control
Vessel |
7th day |
14th day |
21st day |
28th day |
Mean |
% degradation |
|||||
Test item 1 |
53 |
71 |
83 |
89 |
88 |
Test item 2 |
54 |
73 |
82 |
86 |
|
Toxicity control |
68 |
79 |
85 |
90 |
- |
Reference substance |
86 |
92 |
94 |
95 |
- |
In the toxicity control 79% degradation was recorded after 14 d. Since the trigger value of 25% degradation after 14 d is reached the substance is not considered to be inhibitory to the inoculum.
Table 2: Validity criteria for OECD 301F.
Criterion from the guideline |
Outcome |
Validity criterion fulfilled |
Difference of extremes of replicate values of the removal of the test chemical at the plateau, at the end of the test or at the end of the 10-d window, as appropriate, is less than 20%. |
3% |
yes |
Percentage degradation of the reference compound has reached the pass levels by day 14. |
92% |
yes |
The oxygen uptake of the inoculum blank is normally 20-30 mg O2/L and should not be greater than 60 mg/L in 28 days. |
29 mg/L |
yes |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- For further details please refer to “Any other information on results incl. tables”.
- Interpretation of results:
- readily biodegradable
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