Registration Dossier
Registration Dossier
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EC number: 264-150-0 | CAS number: 63449-39-8
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 123 (Partition Coefficient (1-Octanol / Water), Slow-Stirring Method)
- GLP compliance:
- no
- Type of method:
- slow-stirring method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Tetradecane, chloro
- IUPAC Name:
- Tetradecane, chloro
- Test material form:
- liquid
- Details on test material:
- Tetradecane chlorinated by Chemica del Cinca to specific chlorination levels.
Constituent 1
- Specific details on test material used for the study:
- Chemical name C14 chlorinated N-alkane, 50% Cl (wt.)
Batch/Lot number C14CL50 20160623
Purity 100% (UVCB)
Total chlorine (see annex 2) 50.07% w/w
Expiry date 01-12-2018
Solubility in water insoluble in water
Stability not relevant
Storage at ambient temperature in the dark
The concentrations cited in this report refer to the as-received sample of C14 chlorinated N-alkane, 50% Cl (wt.).
Study design
- Analytical method:
- mass spectrometry
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- >= 5.88 - <= 6.82
- Temp.:
- 18.7 °C
- pH:
- 6
Applicant's summary and conclusion
- Conclusions:
- The calculated weighted average log KOW (log KOW,Av) value for triplicate experimental set-ups was 6.58 with a standard deviation of 0.09. The experimental values are in agreement with the lower range of predicted KOW values by others. The log KOW values of C14 with different chlorine numbers varied between 5.98 and 6.96, and showed no trend with the chlorine number.
- Executive summary:
The objective of this study was to experimentally determine the KOW of a C14 polychlorinated n-alkane test material with 50% Cl content by weight using OECD Test Guideline 123. The calculated weighted average log KOW (log KOW,Av) value for triplicate experimental set-ups was 6.58 with a standard deviation of 0.09. The experimental values are in agreement with the lower range of predicted KOW values by others. The log KOW values of C14 with different chlorine numbers varied between 5.98 and 6.96, and showed no trend with the chlorine number.
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