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EC number: 232-313-5 | CAS number: 8002-53-7 Wax obtained by extraction of lignite.
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study according to OECD Test Guideline 117 under GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: calculation method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Montan wax
- EC Number:
- 232-313-5
- EC Name:
- Montan wax
- Cas Number:
- 8002-53-7
- Molecular formula:
- As montan wax is a UVCB, a molecular formular cannot be specified.
- IUPAC Name:
- Montan wax
Constituent 1
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- >= 1.49 - <= 2.57
- Temp.:
- 20 °C
- Remarks on result:
- other: pH is not indicated. However, due to the low solubility, it can be assumed that the pH remained approximately neutral.
- Details on results:
- Water solubility was assumed to be between 0.1 (worst case) and 1.2 mg/L (best case) based on the available study of the water solubility.
Mean saturation in octanl of five samples was 36.9 mg/L ranging between 29.8 and 44.4 mg/L.
The blank gave only a marginal dry residue (0.1 mg). Therefore, no correction of the determined concentrations was necessary.
Log Pow range was calcualted by the above given formulae using both the best and worst case water solubility.
Applicant's summary and conclusion
- Conclusions:
- In a study according to OECD test guideline 117 under GLP, the log Pow of the test substance was calculated to be in the range from 1.49 to 2.57.
- Executive summary:
In a preliminary test, the test substance was mixed with methanol / water 75/25 (%V/V) and set into an ultrasonic bath. No dissolution could be observed. The HPLC analysis of the solution according to the EU Method A.8 “Partition Coefficient“ yielded no signal of the test item. This was considered to be caused by the insolubility of the test item in the mobile phase. Therefore, it was not possible to determine the log Pow of Montan wax by HPLC. As the test item is a mixture of many components with different dissolution behaviours in n-octanol and water, a determination is not possible with the shake flask method, either. Therefore, an estimation of the solubility in water and in octanol was used to calculate an approximated log Pow.
The measured dry residues are low. Therefore, the determination of the saturation concentration is not very precise. Calculation of the corresponding log Pow shows that the influence on the result is not so relevant. On base of the minimum/maximum water solubility of 0.1/1.2 mg/L, the log Pow was calculated to be in the range from 1.49 to 2.57.
No observations arousing doubts concerning the accuracy of the results and the validity of the study were made.
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