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EC number: 263-336-9 | CAS number: 61931-80-4
- 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

Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- July 1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Remarks:
- Preliminary test UV VIS/HPLC was performed
- Partition coefficient type:
- octanol-water
- Analytical method:
- gas chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.4
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: pH was not reported (7 included as default)
- Details on results:
- The test article was quantified in each of the two phases after equilibration by means of GC/FID. The n-octanol phase was directly analyzed after dilution with acetone. Due to low concentrations of the test substance present in the aqueous phase, the test article was extracted from this phase with n-pentane. The extract was analyzed by GC. Validation of the extraction step was achieved by means of three spiking experiments with concentration levels of 1.00, 2.50 and 3.50 µg/mL. The obtained recoveries of the quality control (QC) samples ranged from 129.5% to 146.3%. Due to these high recoveries, the test samples (aqueous-phase) were corrected for the mean value of the QC recoveries. The mass balances indicated that the total quantity of the test substance originally introduced into the two-phase system was completely recovered after equilibration: total recoveries ranged from 100.1% to 110.7%.
- Conclusions:
- The partition coefficient was determined to be log Pow: 4.4 (20 -23°C)
- Executive summary:
The partition coefficient of the test substance was determined according to OECD TG 107, with the shake flask method and was determined to be log Pow: 4.4 (20 -23°C)
Reference
Calculated values of the partition coefficient (P)
Sample No. |
Partition coefficient (P) |
|||||
Pow (individual values) |
Mean Pow (for each set of test conditions) |
Overall mean Pow (of all individual values) |
Standard deviation (of all individual P values about the overall mean) |
Log Pow |
||
Absolute |
Relative [%] |
|||||
A1 |
25711.09 |
25576.78 |
24979.13 |
2013.89 |
8.06 |
4.4 |
A2 |
25442.46 |
|||||
B1 |
27199.75 |
26002.54 |
||||
B2 |
24805.33 |
|||||
C1 |
21737.03 |
21737.03 |
||||
C2 |
Not detected |
Rounded figures are given in the table, but calculations were performed with the exact values.
Description of key information
The partition coefficient of the test substance was determined according to OECD TG 107, with the shake flask method and was determined to be log Pow: 4.4 (20 -23°C)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.4
- at the temperature of:
- 20 °C
Additional information
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