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Diss Factsheets
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EC number: 212-782-2 | CAS number: 868-77-9
- 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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- yes
- Specific details on test material used for the study:
- Purity not specified but typically ca. 98.9 %
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- -Sludge sampling were made at the following 10 places in Japan.
- Time of sludge sampling: March, June, September, and December in every year
- City sewage: Returned sluqge of sewage plants were collected.
- Rivers, lake and sea: Surface water and surface soil which is in contact with atmosphere were collected.
-Mixing of fresh and old activated sludge 5 L of the filtrate of the supernatant of an activated sludge in the present use was mixed with 500 mL of the filtrate of the supernatant of a newly collected sludge respectively and the mixture was cultured at pH 7.0 +1.0
under the sufficient aeration
- Concentration of sludge: 30 mg/L - Duration of test (contact time):
- 14 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- a) Water Temperature: 24 - 26 °C
b) Inoculum: standardized activated sludge, 30 mg/L as suspended solid
c) Exposure Vessel Type: 300 mL culture bottle
d) Number of Replicate: 3 - Reference substance:
- aniline
- Remarks:
- validity: BOD beyond 40% and 60% at the 7th and 14th day respectively
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- >= 92 - <= 100
- Sampling time:
- 14 d
- Parameter:
- % degradation (TOC removal)
- Value:
- >= 86 - <= 87
- Sampling time:
- 14 d
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- 2-Hydroxyethyl methacrylate was degraded 92-100% after 14 days.
- Executive summary:
2-Hydroxyethyl methacrylate was tested in a readily biodegradability screening test acc. OECD 301C (MITI-test). The substance was degraded for 92 -100% after 14 days. Therefore it is concluded that 2-hydroxyethyl methacrylate is readily biodegradable.
Reference
Description of key information
In the key study, biodegradation of 2-hydroxyethyl methacrylate in the OECD 301C MITI test reached 92 to 100% based on BOD and 86 to 87% based on TOC removal after 14 days (CITI Japan, 1992).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
- Type of water:
- freshwater
Additional information
Supporting studies reported 98% biodegradation in 21 days in an OECD 301 E test (Fresenius, 1988) , and 84 % biodegradation after 28 days in an OECD 301 D test (Röhm, 1993).
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