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Diss Factsheets
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EC number: 853-587-8 | CAS number: 199387-97-8
- 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:
- 2022-01-17 to 2022-05-18
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Analytical method:
- photometric method
- other: visual examination
- Key result
- Type:
- log Pow
- Partition coefficient:
- <= 1
- Temp.:
- 25 °C
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- The test item showed no evaluable UV activity at low concentrations. The preliminary test was conducted upon visual examination.
- Conclusions:
- Log Pow was estimated to be about 1.
- Executive summary:
In accordance with the methods OECD 107, OECD 117 and EEC A.8 the partition coefficient of the test item was estimated by preliminary tests of the substance's solubility in water and octanol.
The 1-octanol solubility was estimated to be < 0.1 g/L, the water solubility was estimated to be < 9 mg/L. This results in an estimated log Pow at room temperature of approximately 1.
Reference
The preliminary test at room temperature showed, that the 1-octanol solubility of the test item is < 0.1 g/L. The observations of the preliminary test are summarised in Table 1.
Table 1: Preliminary test results for the 1-octanol solubility
Amount of test item [mg] | Total volume of added 1-octanol [mL] | Stirring time [h:min] | Remark |
220 | 5 | 0:45 | not dissolved |
25 | 1:00 | not dissolved | |
75 | 1:05 | not dissolved | |
16 | 5 | 2:15 | not dissolved |
25 | 0:45 | not dissolved | |
55 | 16:30 | not dissolved | |
105 | 6:35 | not dissolved | |
155 | 114:55 | not dissolved |
The partition coefficients can be calculated from the solubilities in water and 1-octanol by the following equation:
POW = c1-Octanol / cwater
With the values of the estimated water solubility (< 9 mg/L) and the estimated solubility in 1-octanol from this preliminary test (< 0.1 g/L), the partition coefficient could be calculated to be approx. 11 (= log POW ~ 1) at room temperature. However, it was not possible to determine an exact value for neither the water solubility nor the 1-octanol solubility and hence the real log POW can only be considered as an estimated value.
Description of key information
In accordance with the methods OECD 107, OECD 117 and EEC A.8 the partition coefficient of the test item was estimated in preliminary tests of the substance's solubility in water and octanol.
The 1-octanol solubility was estimated to be < 0.1 g/L, the water solubility was estimated to be < 9 mg/L. This results in an estimated log Pow at room temperature of approximately 1. (log POW <= 1)
Key value for chemical safety assessment
Additional information
Estimated Log POW <=1
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