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Physical & Chemical properties

Partition coefficient

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Reference
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:
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

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