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EC number: 943-286-0 | CAS number: 955359-35-0
- 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:
- 2013-06-06 to 2013-07-11
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Version / remarks:
- adopted 1992-07-17
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- TEST MATERIAL
- Lot/batch No.of test material: 11/LE/016 K1
- Expiration date of the lot/batch: 2014-03-13
- Purity test date: 2013-03-131
- Purity:
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Tightly closed, protected from moisture at room temperature
- Stability under test conditions: stable
- Solubility and stability of the test substance in the solvent/vehicle: <0.1% (water solubility) - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge: Municipal sewage treatment plant, 31137 Hildesheim, Germany
- Pretreatment:
The activated sludge was washed twice with chlorine free tap water. After the second washing the settled sludge was resuspended in mineral salts medium and was maintained in an aerobic condition by aeration for 2 hours. Thereafter the sludge was homogenized with a blender. The supernatant was decanted and maintained in an aerobic condition by aeration with CO2 free air until test start. 10 mL/L of this mixture were used to initiate inoculation. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 25 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST METHOD
Duration: 28 d
Application: Once at test start
Test vessels: 500 mL, brown glass
Volume of the test medium : 250 mL
Test medium: Mineral salts medium acc. to OECD 301 F / Manometric Respirometry Test
Test temperature: Nominal 20-24°C, actual measured 19.5 - 20°C
Dispersion treatment: Continuous stirring
Photoperiod: Dark, in an incubator - Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 2
- Sampling time:
- 14 d
- Remarks on result:
- other: Replicate 1: 4% Replicate 2: 0%
- Parameter:
- % degradation (O2 consumption)
- Value:
- 4.5
- Sampling time:
- 21 d
- Remarks on result:
- other: Replicate 1: 9% Replicate 2: 0%
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 8
- Sampling time:
- 28 d
- Remarks on result:
- other: Replicate 1: 16% Replicate 2: 0%
- Details on results:
- The biodegradation of the test item is shown graphically in Figure 1 in comparison to the readily degradable functional control and the toxicity control. The first test item replicate reached the 10% level (beginning of degradation) after an adaptation phase on day 23 and at test end the biodegradation reached 16%. The 2nd replicate did not reach the 10% level until test end. The biodegradation of the 2nf replicate remained at 0%. Both test item replicates did not reach the 60% pass level within 28 days.
- Results with reference substance:
To check the activity of the test system, sodium benzoate was used as functional control. The percentage degradation of the functional control reached the pass level of 60 % within 3 days and a biodegradation of 100 % after 13 days. In the toxicity control containing both test and reference item a biodegradation of 50 % was reached after 14 days. After 28 days a biodegradation of 55 % was determined. The biodegradation of the reference item was not inhibited by the test item in the toxicity control.- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Under the test conditions the test item is not readily biodegradable in the 10-day-window and within 28 days.
- Executive summary:
Under the test conditions the test item is not readily biodegradable in the 10-day-window and within 28 days.
Reference
Biodegradation of the test item in comparison to the functional control and toxicity control:
Biodegradation | ||||
Study Day [d] | ||||
6 | 15 | 21 | 28 | |
Test Item, 1st Replicate | 0 | 4 | 9 | 16 |
Test Item, 2nd Replicate | 0 | 0 | 0 | 0 |
Functional Control | 93 | 100 | 100 | 100 |
Toxicity Control | 45 | 50 | 52 | 55 |
Description of key information
The test material was not readily biodegradable in a manometric respirometry test according to OECD 301 F.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
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