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Diss Factsheets
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EC number: 940-417-3 | 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
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1991-02-19
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study no GLP, acceptable defiencies in reporting
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- Deviations:
- yes
- GLP compliance:
- no
Test material
- Reference substance name:
- 5,8,11,14,17-pentaoxahenicosane; 5,8,11,14-tetraoxaoctadecane
- EC Number:
- 940-417-3
- Molecular formula:
- C14H30O4 C16H34O5
- IUPAC Name:
- 5,8,11,14,17-pentaoxahenicosane; 5,8,11,14-tetraoxaoctadecane
- Details on test material:
- - Name of test material (as cited in study report): Polyglycoldibutylether
- Physical state: Liquid, colourless
- Stability under test conditions: Stable
- Storage condition of test material: Room temperature, protected from light, in original container
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: The test item was weighed out directly in an Erlenmeyer flask, filled up with 200 mL demieralised water.
- Eluate: Test medium:
250 mL inoculum
16 mL synthetic waste water
234 mL autoclaved tap water
- Loading 1000-10000 mg/L (test item)
- Controls: Test medium without test or reference item
Test organisms
- Test organisms (species):
- activated sludge
- Details on inoculum:
- - Inoculum from industrial sewage treatment plant 84508 Burgkirchen-Gendorf, Germany
- Pretreatment: Washed twice with autoclaved tap water and adjusted to a dry weight concentration of 3 g/L +/- 10 %. The sludge was used within 24 h after stirring.
- Dry sludge concentration: 3.12 g/L corresponding to 1.56 g/L suspended solids in the test vessels
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 3 h
Test conditions
- Hardness:
- Not determined
- Test temperature:
- 21.1 °C
- pH:
- 7.32 (activated sludge)
7.56 (synthetic waste water) - Salinity:
- None, freshwater
- Details on test conditions:
- - no details given but according Guideline OECD 209
- Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 3 h
- Dose descriptor:
- EC50
- Effect conc.:
- 3 500 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Remarks on result:
- other: n.a.
- Duration:
- 3 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Remarks on result:
- other: n.a.
- Details on results:
- - Any observations (e.g. precipitation) that might cause a difference between measured and nominal values: None
- Results with reference substance (positive control):
- - no reference substance used
- Reported statistics and error estimates:
- - graphical evaluation of data
Any other information on results incl. tables
- graphical data
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The NOEC of the test item is 1000 mg/L and the EC50 3500 mg/L to activated sludge of the industrial sewage treatment plant 84508 Burgkirchen-Gendorf, Germany
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