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EC number: 249-060-1 | CAS number: 28510-23-8
- 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:
- 27 Mar to 18 Apr 1995
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- GLP compliance:
- no
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Key result
- Type:
- log Pow
- Partition coefficient:
- > 6
- Remarks on result:
- other: pH and temperature were not reported
- Conclusions:
- log Pow of the substance was determined to be > 6.0
- Executive summary:
The octanol / water partition co-efficient was determined to be log Pow > 6.0 using OECD Test Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method) which was reported in: NPG 2EH: Determination of octanol-water partition coefficient (log10 kow), Brixham Environmental Laboratory, Brixham, UK Dated: 12-July-1995.
Reference
pH and temperature are not reported
log10Kowcalculated using the regression equation, log10Kow= a log10k + b
Peak no. | Calculated log10Kow(UV) | Calculated log10Kow(RI) |
1 | 5.3 | -1 |
2 | 7.5 | 7.42 |
1Not detected by RI. Based on detection limit, this component was present at less than 1% w/w.
2Slight differences in log10Kowestimation is within experimental error. This component is present at greater than 1 % w/w.
Description of key information
NPG 2EH: Determination of octanol-water partition coefficient (log10 kow)
The octanol / water partition co-efficient was determined to be log Pow > 6.0 using OECD Test Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method) which was reported in: NPG 2EH: Determination of octanol-water partition coefficient (log10 kow), Brixham Environmental Laboratory, Brixham, UK Dated: 12-July-1995.
QSAR Estimation (KOWWIN)
The partition coefficient of 2,2 -dimethylpropane-1,3 2 -ethylhexanoate CAS 28510 -23 -8 was determined to be log Pow 7.51 using a validated QSAR estimation tool (KOWWIN (the Log Octanol-Water Partition Coefficient Program). QSAR results are acceptable as it meets the requirements of Regulation (EC) No 1907/2006 Annex XI paragraph 1.3.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 6
Additional information
The log Pow of the substance NPG di-2-ethylhexanoate (CAS 28510-23-8) was determined by HPLC method according to OECD Guideline 117. The QSAR calculation (log Pow = 7.51) with KOWWIN (v1.68) is supports this.
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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