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EC number: 914-471-3 | 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
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 29 March to 03 May 2012
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well-documented study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
- Principles of method if other than guideline:
- Estimation of the partition coefficient by calcuation from the individual solubilities in water and in n-octanol (wich were determined by the flask method, EU A.6 / OECD TG 105).
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: Calculation
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Montan waxes, type KPS
- IUPAC Name:
- Montan waxes, type KPS
- Details on test material:
- Test item: Licowax KPS FL
Constituent 1
Study design
- Analytical method:
- other: Gravimetry
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- < 2
- Temp.:
- 20 °C
- pH:
- >= 5.6 - <= 5.9
Any other information on results incl. tables
4.4.1. Preliminary Visual Estimation of the Water Solubility
The preliminary visual experiments showed that the solubility of the test item in water is below 5.4 mg/L (without correction for the purity).
4.4.2. Preliminary Visual Estimation of the n-Octanol Solubility
According to this preliminary test the solubility of the test item in n-octanol is below 4.6 mg/L (without correction for the purity).
4.4.3. Calculation of the Partition Coefficient log Pow from the Preliminary Tests
With the data obtained from the experiments in chapter 4.4.1 and 4.4.2 the partition coefficient was calculated as log Pow = ca. 1
4.4.4. Determination of the Solubility in water: Flask Method
Table 1: Solubility of the test item in water — experiments A to D
Experiment |
A |
B |
C |
D (blank) |
Amount of test item (mg) |
50.5 |
50.9 |
50.4 |
- |
Stirring time at 30 °C (h) |
24 |
48 |
72 |
72 |
pH at 23 °C |
5.9 |
5.9 |
5.6 |
5.7 |
Weight residue in flask (g) |
0.004 |
0.005 |
0.005 |
0.004 |
Measured concentration (g/kg) |
0.022 |
0.026 |
0.029 |
0.025 |
Water solubility (g/L)1) |
- 2) |
0.002 |
0.005 |
- |
1) For the evaluation of the water solubility the measured concentration of experiment D (blank) was subtracted from the measured concentrations of the experiments A to C. The results were converted using the density of water at 20 °C (0.998 g/cm³).
2) Not used for the evaluation of the water solubility because the measured concentration is lower than the concentration of the blank.
The water solubility of the test item was determined to be: c (water, sat.) = 0.003 g/L
4.4.5. Determination of the Solubility in n-octanol: Flask Method
Table 2: Solubility of the test item in n-octanol— experiments E to H
Experiment |
E |
F |
G |
H (blank) |
Amount of test item (mg) |
51.9 |
50.9 |
50.6 |
- |
Stirring time at 30 °C (h) |
24 |
48 |
72 |
72 |
Weight residue in flask (g) |
0.003 |
0.010 |
0.010 |
0.001 |
Measured concentration (g/kg) |
0.020 |
0.068 |
0.063 |
0.004 |
n- octanol solubility (g/L)1) |
0.013 |
0.053 |
0.049 |
- |
1) For the evaluation of the octanol solubility the measured concentration of experiment H (blank) was subtracted from the measured concentrations of the experiments E to G. The results were converted using the density of n-octanol at 20 °C (0.83 g/cm³).
The n-octanol solubility of the test item was determined to be: c (n-octanol, sat.) = 0.04 g/L
4.4.6. Calculation of the Partition Coefficients log Pow from the Individual Solubilities
The partition coefficient Pow was estimated from the saturation concentrations in n-octanol and water
by the following equation: Pow = c (octanol, sat.) / c (water, sat.)
It was determined to be: log Pow < 2
The water solubility of the test item is very low and therefore near the sensitivity of the method.
Due to the aforementioned reason the stated log Pow is rounded up as conservative approach.
Applicant's summary and conclusion
- Conclusions:
- Estimation of the n-octanol/water partition coefficient by calculation from the individually determined solubilities results in log Pow < 2.
- Executive summary:
The partition coefficient n-octanol/water of the test item at 20 °C was determined by calculation from the individual solubilities in water and in n-octanol (determined by flask method EU A.6 / OECD TG 105) due to its low solubility in both solvents. This estimation method results in log Pow < 2.
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