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EC number: 225-076-4 | CAS number: 4645-32-3
- 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: screening test, other
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1989
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- A static test was conducted to determine the biodegradability of the test item. The biodegradation was determined after 3 hours, 5 days, 10 days and 28 days.
- GLP compliance:
- no
- Oxygen conditions:
- not specified
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- 28 d
- Parameter followed for biodegradation estimation:
- DOC removal
- Parameter followed for biodegradation estimation:
- other: COD removal
- Parameter followed for biodegradation estimation:
- other: BOD
- Key result
- Parameter:
- not specified
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- The EC50 value of the toxicity control was greater than 5000 mg/L.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The degree of biodegradation was 0% after an exposure of 28 days. Thus, the test item is not considered to be biodegradable under the test conditions chosen.
- Executive summary:
The biodegradation of the test item was determined in a static test after 3 hours, 3, 5, 10 and 28 days. The degree of biodegradation was 0% after an exposure of 28 days. The EC50 value of the toxicity control was determined to be greater than 500 mg/L. Thus, the test item is not considered to be biodegrdable under the test conditions chosen.
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- March 1990 - January 1991
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- Version / remarks:
- not specified
- Deviations:
- yes
- Remarks:
- No reference control was testesd. A bacteria toxicity control is not specified.
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge: HOECHST/Kelsterbach 1:1
- Concentration of sludge: 6 g/L (wet) corresonding to 564 mg/L dry weight) - Duration of test (contact time):
- 3 h
- Initial conc.:
- 617 mg/L
- Based on:
- COD
- Parameter followed for biodegradation estimation:
- other: COD removal
- Details on study design:
- SAMPLING
- Sampling frequency: after 3 hours, 1 d, 3, 6, 8, 10, 13, 16, 20, 22, 24, 27 and 28 days - Reference substance:
- not specified
- Key result
- Parameter:
- other: % degradation (COD removal)
- Value:
- 6
- Sampling time:
- 28 d
- Details on results:
- The adsorption after 3 hours was less than 10%. The test was terminated after 28 days.
- Validity criteria fulfilled:
- no
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The biodegradation of the test substance was determined to be less than 6% after 28 days. Thus, the test item is not considered to be inherently biodegradable under the test conditions chosen.
- Executive summary:
The inherent biodegradability of the test item was investigated in a Zahn-Wellens-Test according to OECD Guideline 302B. Test test substance was tested at a nominal concentration of 617 mg/L (COD). The test was terminated after 28 days. The adsorption after 3 hours was less than 10%. The biodegradation of the test substance was determined to be less than 6% after 28 days. Thus, the test item is not considered to be inherently biodegradable under the test conditions chosen.
Referenceopen allclose all
Description of key information
The test item was not inherently biodegradable under the test conditions chosen (% degradation less than 10%) in an Zahn-Wellens-Test. Furthermore, the degree of biodegradation was 0% in a static test.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
A WoE approach was conducted to assess the biodegradation of the test item.
The inherent biodegradability of the test item was investigated in a Zahn-Wellens-Test according to OECD Guideline 302B. Test test substance was tested at a nominal concentration of 617 mg/L (COD). The test was terminated after 28 days. The adsorption after 3 hours was less than 10%. The biodegradation of the test substance was determined to be less than 6% after 28 days. Thus, the test item is not considered to be inherently biodegradable under the test conditions chosen.
Additionally, the biodegradation of the test item was determined in a static test after 3 hours, 3, 5, 10 and 28 days. The degree of biodegradation was 0% after an exposure of 28 days. The EC50 value of the toxicity control was determined to be greater than 500 mg/L. Thus, the test item is not considered to be biodegrdable under the test conditions chosen.
In conclusion, the test is not considered to be biodegradable under the conditions chosen.
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