Registration Dossier
Registration Dossier
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EC number: 701-237-9 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- comparable method to OECD guideline, but with some information not present.
- Principles of method if other than guideline:
- Monsanto Environmental Sciences method ES-79-M-15: Log Kow of the substance was measured by equilibrating aqueous solutions of radiolabelled compounds with n-octanol. The concentrations of the substance in each phase were determined by Liquid Scintillation Counting (LSC).
equilibrating aqueous solutions of radiolabelled compounds with n-octanol - GLP compliance:
- no
- Type of method:
- other: equilibrating aqueous solutions of radiolabelled compounds with n-octanol
- Partition coefficient type:
- octanol-water
- Key result
- Type:
- log Pow
- Partition coefficient:
- -3.5
- Remarks on result:
- other: No other information is given.
- Conclusions:
- A log Pow value of lower than -3.50 is was obtained by valid read-across. The result is considered to be reliable.
Reference
Concentration in water (ppm) |
Measured octanol/water partition coefficient |
100 |
2.79 x10-4 |
1000 |
3.29 x10-4 |
1000 |
3.14 x10-4 |
1000 |
3.39 x10 -4 |
average partition coefficient value = 3.15E-4 ( low Pow = -3.50)
Description of key information
Partition coefficient: log Kow < -3.5 (read across from acid substance)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -3.5
Additional information
A log Kow value of -3.5 was determined in a reliable study conducted according to an appropriate test method. The result is considered to be reliable and has been assigned as key study. This value is read across to the sodium salts as log Kow <-3.5 from HEDP parent acid.
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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