Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 224-226-6 | CAS number: 4253-90-1
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:
- August 12th 2009 - November 18th 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 5.6
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: The three measurements yielded the same value: log Kow = 5.6
- Details on results:
- Based on the chromatographic data, the test item was considered stable during the test procedure. The partition coefficient was determined based on a calibration curve using 7 reference items. The difference between the three measurements of the reference mixture is less than 0.1 log unit. Therefore, the study is considered valid. The correlation coefficient for the relationship between log k and log Pow for the set of reference items was around 0.9.
- Conclusions:
- The log Pow for Polysulfides, di-tert-butyl is 5.6.
- Executive summary:
The octanol-water partition coefficient of polysulfide di-tert-butyl was determined according to OECD TG 117 method (HPLC) under GLP. The log Pow was 5.6.
Reference
Description of key information
The log Pow for Polysulfides, di-tert-butyl is 5.6.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 5.6
- at the temperature of:
- 20 °C
Additional information
Mollandin (2009) is a GLP compliant, high performance liquid chromatography study following OECD guideline 117. The study is considered reliable and suitable for use for this endpoint. The log Pow for Polysulfides, di-tert-butyl is 5.6.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
