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EC number: 227-815-6 | CAS number: 5989-54-8
- 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:
- 1999
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- Study conducted similarly to OECD guideline 117 with minor deviations: no certificate of analysis of the test substance
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- yes
- Remarks:
- no certificate of analysis of the test substance
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- not specified
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 4.38
- Temp.:
- 37 °C
- pH:
- 7.2
- Remarks on result:
- other: standard error: 0.05
- Details on results:
- - Experimental log Kow (RP-HPLC) = 4.38 (S.E.: 0.05) at 37 °C
- Calculated log Kow = 4.36 (fragment method), 4.83 (atom /fragment contribution method) and 2.94 (atomistic method) - Conclusions:
- Under the test conditions, the partition coefficient, log Kow, of (-)-limonene was determined to be 4.38 (S.E. = 0.05) at 37 °C. The calculated log Kow values of (-)-limonene were 4.36 (fragment method), 4.83 (atom /fragment contribution method) and 2.94 (atomistic method).
- Executive summary:
A valid study was conducted to determine the partition coefficient of (-)-limonene by Reverse Phase High Performance Liquid Chromatographic method similarly to OECD Guideline 117.
Under the test conditions, the partition coefficient, log Kow, of (-)-limonene was determined to be 4.38 (S.E. = 0.05) at 37 °C. The calculated log Kow values of (-)-limonene were 4.36 (fragment method), 4.83 (atom /fragment contribution method) and 2.94 (atomistic method).
Reference
None
Description of key information
Key study: Test method similar to OECD 117: Log Kow determined using HPLC method : 4.38 at 37°C.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.38
- at the temperature of:
- 37 °C
Additional information
The key value for log Kow of l-limonene (4.38) was experimentally determined by an HPLC method similar to OECD 117 guideline.
The result is supported by other experimental values on l-limonene and on d-limonene, by read-across, its enantiomer which have the same physical properties.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

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