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Diss Factsheets
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EC number: 932-349-8 | CAS number: 8006-64-2
- 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:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- Beta-Pinene is a main constituent of UVCB substance gum tupentine oil. Therefore, data on beta-pinene can be used for extrapolation to gum turpentine oil. See read-across justification document in section 13.
- Reason / purpose for cross-reference:
- read-across source
- Principles of method if other than guideline:
- Not applicable
- Analytical method:
- gas chromatography
- Type:
- Pow
- Partition coefficient:
- 26 610
- Temp.:
- 25 °C
- Remarks on result:
- other: ± 340
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.425
- Temp.:
- 25 °C
- Remarks on result:
- other: ± 0.005
- Conclusions:
- The partition coefficient, Kow (mol/mol), of β-Pinene was measured to be 26610 ± 340, which corresponds to a log Kow of 4.425 ± 0.005 at 25°C.
- Executive summary:
A study was conducted to determine the partition coefficient of β-pinene using the shake-flask method (de Bruijn et al., 1989; Dewulf et al., 1999)and similarly to OECD Guideline 107. Octanol phase with test substance was thoroughly mixed with water to reach the partition equilibrium. After separation by centrifugation, concentration of the test substance in the octanol phase was determined by gas chromatography and the partition coefficient was calculated.
The partition coefficient, Kow (mol/mol), of β-pinene was measured to be 26610 ± 340, which corresponds to a log Kow of 4.425 ± 0.005 at 25 °C.
- Endpoint:
- partition coefficient
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- Alpha-Pinene is a main constituent of UVCB substance gum tupentine oil. Therefore, data on alpha-pinene can be used for extrapolation to gum turpentine oil. See read-across justification document in section 13.
- Reason / purpose for cross-reference:
- read-across source
- Principles of method if other than guideline:
- Not applicable
- Analytical method:
- gas chromatography
- Type:
- Pow
- Partition coefficient:
- 30 670
- Temp.:
- 25 °C
- Remarks on result:
- other: ± 260
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.487
- Temp.:
- 25 °C
- Remarks on result:
- other: ± 0.004
- Conclusions:
- The partition coefficient, Kow (mol/mol), of α-pinene was measured to be 30670 ± 260, which corresponds to a log Kow of 4.487 ± 0.004 at 25°C.
- Executive summary:
A study was conducted to determine the partition coefficient of α-pinene using the shake-flask method (de Bruijn et al., 1989; Dewulf et al., 1999) and similarly to OECD Guideline 107. Octanol phase with test substance was thoroughly mixed with water to reach the partition equilibrium. After separation by centrifugation, concentration of the test substance in the octanol phase was determined by gas chromatography and the partition coefficient was calculated.
The partition coefficient, Kow (mol/mol), of α-pinene was measured to be 30670 ± 260, which corresponds to a log Kow of 4.487 ± 0.004 at 25°C.
Referenceopen allclose all
None
None
Description of key information
Measured log Kow of the two main constituents of gum turpentine oil (alpha-pinene and beta-pinene) were between 4.43 and 4.49.
The key value taken into account for gum turpentine oil is log Kow = 4.49.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.49
- at the temperature of:
- 25 °C
Additional information
The key value for alpha pinene is derived from a study using the shake-flask method and giving a log Kow = 4.49 at 25 °C.
The key value for beta-pinene is derived from a study using the shake-flask method with beta-pinene and giving a logPow= 4.42 at 25 °C.
These values are in the same magnitude of order, all slightly below 4.5.
Alpha pinene is the main constituent of gum turpentine oil (20-80%). Moreover, its log Kow based on a measured value from a relevant study (shake flask method at 25°C) can be considered as worst case for potential of bioaccumulation.
Therefore, the key value taken into account for gum turpentine oil is log Kow = 4.49.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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