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EC number: 246-916-6 | CAS number: 25377-72-4
- 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:
- other: experimental result and calculation
- Adequacy of study:
- key study
- Study period:
- Commenced on 7 September 1983
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in accordance with generally accepted scientific principles, possibly with incomplete reporting or methodological deficiencies, which do not affect the quality of the relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 984
- Report date:
- 1984
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- not applicable
- Principles of method if other than guideline:
- Chou, J. T. and Jurs, P. C. (1979) Computer-assisted computation of partition coefficients from molecular structures using fragment constants. J. Chem. Int. Comput. Sci., 19, 172-178.
Eadsforth, C.V. (1982) The development of an HPLC analytical method for the determination
of partition coefficients. Group Research Report: SBGR.82.262.
Hansch, C. and Leo, A. (1979) Substituent Constants for Correlation Analysis in Chemistry and Biology, J. Wiley and Sons, New York, 352 pp.
Sittingbourne Analytical Method Series (SAMS 347-1). Partition coefficient determination by distribution of a pure chemical in an octan-l-ol water system. - GLP compliance:
- not specified
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Pentene
- EC Number:
- 246-916-6
- EC Name:
- Pentene
- Cas Number:
- 25377-72-4
- Molecular formula:
- C5H10
- IUPAC Name:
- pent-1-ene
- Details on test material:
- - Name of test material (as cited in study report): Pentene-1.(n-amylene)
- Physical state: Clear, colourless volatile liquid.
- Analytical purity: 94.4%
- Lot/batch No.: ST83/065
- Expiration date of the lot/batch:
- Stability under test conditions: The test substance was judged to have been stable for the duration of this study. (Formulations) The stabilities of formulations of the test substance in Tween 80/ethanol was stable for at least one working day (7.5 h).
- Storage condition of test material: In the dark at ambient temperature.
Constituent 1
Results and discussion
Partition coefficientopen allclose all
- Type:
- log Pow
- Partition coefficient:
- 3.8
- pH:
- 6.7
- Remarks on result:
- other: HPLC method
- Type:
- log Pow
- Partition coefficient:
- 3
- Remarks on result:
- other: calculated by fragment-addition method
Applicant's summary and conclusion
- Conclusions:
- The n-octanol/water partition coefficient of pentene-1 was determined by reverse-phase HPLC and by calculation from chemical structure. The log
Pow values obtained were 3.8 and 3.0 respectively. There results indicate a moderate potential for pentene-l to accumulate from water into organisms. - Executive summary:
The n-octanol/water partition coefficient of pentene-1 was determined by reverse-phase HPLC and by calculation from chemical structure. The log
Pow values obtained were 3.8 and 3.0 respectively. There results indicate a moderate potential for pentene-l to accumulate from water into organisms.
The test was conducted following to the similar methodologies as OECD testguideline 117. There are no information available regarding the testing facility therefore a reliability of 2 is assigned.
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