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EC number: 204-429-6 | CAS number: 120-83-2
- 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)
Description of key information
The key value for the log Pow is 3.21 to 3.25 (at 20°C) although a number of other sources are reported with slighly lower values.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 3.25
- at the temperature of:
- 20 °C
Additional information
A total of twelve log Pow values are reported in the five studies cited. They vary between 2.92 and 3.25 although the temperature is not indicated in most cases. These are recorded in the table below:-
Log Pow | Temperature / °C | Reference |
3.21 -3.25 | 20 | SIDS |
3.0 | Not given | SIDS |
2.92 | Not given | SIDS |
3.06 | Not given | SIDS |
3.08 | Not given | SIDS |
3.15 | Not given | SIDS |
3.23 | Not given | CRC Handbook |
3.17 | Not given | International Chemical Safety Card for 2,4 -Dichorophenol |
3 | Not given | IUCLID Dataset 4 |
3.06 | Not given | IUCLID Dataset 4 |
3.08 | Not given | IUCLID Dataset 4 |
3.21 -3.25 | 20 | EPA High Production Volume Information System |
In accordance with the ECHA guidance document (Guidance on information requirements and chemical safety assessment, Chapter R .7a : Endpoint specific guidance - subsection 7.1.8.3, page 105) where there are variations in the values reported the highest reliable value should take precedence - hence 3.25 at 20 °C. In addition, the guidance document also references a number of additional potential data sources, one of which is the Canadian National Committee for CODATA (CNC/CODATA) database (http://logKow/cisti/nrc/ca).
This database lists 20 log Pow values ranging from 2.87 to 3.41 at 20 -25 °C (where the temperature is available) which is reproduced below :- (http://logkow.cisti.nrc.ca/logkow/display?OID=1339 ).
Log Kow |
Ref |
Temp |
Equil Meth |
Anal Meth |
Aq Phase |
Phases Anal |
Meth Ref |
Method |
Footnote |
2.87 |
1986Chia |
|
|
|
|
|
|
HPLC retention time correlation |
|
2.88 |
1993Huaa |
|
SF |
|
|
|
1971Leo |
|
|
2.90 |
2002Wu |
25.0 |
SF |
AS |
W |
AQ |
1981Oec |
|
|
2.92 |
1982Ham |
|
|
|
|
|
|
HPLC retention time correlation |
|
2.97 |
1986Miy |
|
|
|
|
|
|
HPLC retention time correlation |
|
3.00 |
1988Ahl |
|
SF |
|
|
|
1981Oec |
|
|
3.06 |
1971Sto |
|
SF |
AS |
"acid" |
both |
1964Fuj |
|
|
3.08 |
1973Yag |
|
SF |
AS |
W |
AQ |
1964Fuj |
|
|
3.08 |
1979Scha |
|
|
|
|
|
|
|
|
3.12 |
1981But |
|
|
|
|
|
|
HPLC retention time correlation |
|
3.14 |
1982Miya |
|
|
|
|
|
|
HPLC retention time correlation |
|
3.17 |
1984Xiea |
20.0 |
SF |
GLC |
"acid" |
both |
|
|
|
3.20 |
1994Kis |
20.0 |
SF |
CR/GLC |
pH3-10 |
AQ |
|
|
ion-corrected to neutral form |
3.21 |
1988Shia |
|
SF |
|
W |
|
|
|
|
3.23 |
1984Scha |
20.0 |
SF |
HPLC |
pH2 |
AQ |
|
|
|
3.23 |
1984Xie |
|
|
|
|
|
|
HPLC retention time correlation |
|
3.30 |
1972Mac |
|
SF |
|
|
|
1969Leo |
|
K. Thomae, private communication |
3.41 |
1984Bel |
|
SF |
AS |
W |
AQ |
1964Fuj |
|
|
3.41 |
1987Ter |
|
|
|
|
|
|
by centrifugal partition chromatography |
average value |
2.98 |
2008Xie |
25.0 |
SF |
AS |
W |
AQ |
|
|
|
Given that the first value (3.21 -3.25) to be reported in the SIDS dossier is regarded as a critical study for this endpoint this is taken as the key value for chemical safety assessment. Since this is a range the higher value is taken in accordance with the ECHA guidance document (Guidance on information requirements and chemical safety assessment, Chapter R .7a : Endpoint specific guidance - subsection 7.1.8.3, page 105).
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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