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EC number: 413-390-6 | CAS number: 149144-85-4
- 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:
- May - July 1993
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- no
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material (as cited in study report): Cosmacol EMI
- Substance type: pure active substance
- Physical state: liquid
- Lot/batch No.: 2119
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- not specified
- Details on inoculum:
- no data
- Duration of test (contact time):
- 33 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 13.25 mg/L
- Based on:
- test mat.
- Initial conc.:
- 11.6 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- A measured volume of inoculated medium containing a known amount of test substance was stirred in a closed flask. The consumption of oxygen was determined from the reduction in volume of the air contained in the apparatus. Evolved CO2 was adsorbed in soda lime. The amount of oxygen taken up by the substance (corrected for blank) was expressed as a percentage of the theoretical oxygen demand calculated from the formula of the compound. A reference substance was run in parallel for checking the inoculum.
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 73.8
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
19.3 % degradation after 5 d
38.2 % degradation after 9 d
48.4 % degradation after 13 d
57.8 % degradation after 16 d
64.8 % degradation after 19 d
70.2 % degradation after 23 d
70.9 % degradation after 26 d
73.8 % degradation after 28 d
76 % degradation after 30 d
72.4 % degradation after 33 d
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance):
71.5 % degradation after 5 d
88.3 % degradation after 9 d
87.7 % degradation after 13 d
90.7 % degradation after 16 d
92.5 % degradation after 19 d
94.9 % degradation after 23 d
94.5 % degradation after 26 d
92.5 % degradation after 28 d
93.1 % degradation after 30 d
92.5 % degradation after 33 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The biodegradation of the test material Bis(C12-C13)alkyl-2-hydroxybutandioate measured by manometric repirometry was 77% after 28 days of incubation, approx. 48 % at the end of the 10-day window. Because the substance is an UVCB the 10-window has not to be fulfilled for being "readily biodegradable".
- Executive summary:
Biodegradability of Bis(C12-C13)alkyl-2-hydroxybutandioate was assessed by mean of manometric respirometry according to OECD Guideline 301F.
A measured volume of inoculated medium containing a known amount of test substance was stirred in a closed flask. The consumption of oxygen was determined from the reduction in volume of the air contained in the apparatus. Evolved CO2 was adsorbed in soda lime. The amount of oxygen taken up by the substance (corrected for blank) was expressed as a percentage of the theoretical oxygen demand calculated from the formula of the compound. A reference substance (Sodium benzoate) was run in parallel for checking the inoculum.
The biodegradation of the test material Bis(C12-C13)alkyl-2-hydroxybutandioate measured by manometric repirometry was 77% after 28 days of incubation, approx. 48 % at the end of the 10-day window. Bis(C12-C13)alkyl-2-hydroxybutandioate was judged to be readily biodegradable, but failing the 10 -day window. Because the substance is an UVCB the 10-window has not to be fulfilled for being "readily biodegradable".
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