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EC number: 211-748-4 | CAS number: 693-33-4
Partition coefficient
Administrative data
Link to relevant study record(s)
- 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
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- 100 g of the test substance, Cetyl Betaine Cola®Teric CDB (Lot 56587D17) was placed in an oven at 110°C for 5-6 hours to drive off the water. A 2 g sample of ‘dehydrated’ cetyl betaine was measured at 92.4% Solids using a pan drying method at 110°C for 1 hour.
- Key result
- Type:
- log Pow
- Partition coefficient:
- 0.009
- Temp.:
- 25 °C
- pH:
- 4.7
Reference
Description of key information
Cetyl Betaine is a surfactant containing both water soluble and oil soluble portions within its structure. It is known to be water soluble and partially soluble in n-octanol. This test has confirmed that this substance is n-octonol soluble at a level of 45.6% ± 0.7%.
The partition coefficient has been shown to be
Pow = 1.02
Log Pow = -0.0086
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 0.009
- at the temperature of:
- 25 °C
Additional information
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