Registration Dossier
Registration Dossier
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EC number: 701-428-7 | CAS number: -
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:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD Guidekube 105
- Principles of method if other than guideline:
- The analytical method for the detennination is in agreement with the method that was agreed upon at the "Analytical Experts Meeting" of ETAD (Basel) on January 12,2005.
- GLP compliance:
- no
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Key result
- Type:
- log Pow
- Partition coefficient:
- ca. -0.88 - <= -0.4
- Temp.:
- 23 °C
- Remarks on result:
- other: estimated
- Conclusions:
- The partition coefficient of test substance was estimated to be logPow= -0.88 to -0.4 at 23°C.
Because of high extinction coefficient ɛ in sulfuric acid (about 130 l/g*cm at 860 nm) and the very low solubility, an exact value for solubilities in water and in octanol will be not available.
In order to give an indication for a possible logPow value of the test item the estimation method based on the individual solubilities in octanol and in water was applied.
Reference
Description of key information
Estimated based on solubility ratio:
log Pow= -0.88 to -0.4 at 23°C
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.4
- at the temperature of:
- 23 °C
Additional information
The analytical method for the detennination (solubility in water and in octanol) is in agreement with the method that was agreed upon at the "Analytical Experts Meeting" of ETAD (Basel) on January 12,2005.
Because of high extinction coefficient ɛ in sulfuric acid (about 130 l/g*cm at 860 nm) and the very low solubility, an exact value for solubilities in water and in octanol will be not available.
In order to give an indication for a possible logPow value of the test item the estimation method based on the individual solubilities in octanol and in water was applied.
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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