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EC number: 947-917-0 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- November 22, 1 994 - November 28, 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: EU method A.8 (estimation based on individual solubilities in n-octanol and water)
- Version / remarks:
- 1992
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- <= -0.55
- Temp.:
- 25 °C
- Remarks on result:
- other: pH not specified
- Conclusions:
- The log Kow of Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid based on its individual solubilities in n-octanol (76.9 g/L) and water (>/=270 g/L) is
- Executive summary:
Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid is an amphoteric surfactant. The methods described in the Test Guideline A.8 are not applicable to surface-active materials. An estimate of the partition coefficient n-octanol/water is made based on the individual solubilities in n-octanol and water:
solubility in water: >/= 270 g/L
solubility in n-octanol = 76.9 g/L
The log Kow of Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid was determined to be </=-0.55 at 25°C.
Reference
solubility in water: >/= 270 g/L
solubility in n-octanol = 76.9 g/L
Kow = 76.9/270000 = 2.85E-04
log Kow </= -0.55
Description of key information
</=-0.55 at 25°C (individual solubilities in n-octanol and water; RL1; GLP)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.55
- at the temperature of:
- 25 °C
Additional information
Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid is an amphoteric surfactant. The methods described in the Test Guideline A.8 are not applicable to surface-active materials. An estimate of the partition coefficient n-octanol/water is made based on the individual solubilities in n-octanol and water:
solubility in water: >/= 270 g/L
solubility in n-octanol = 76.9 g/L
The log Kow of Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid was determined to be </=-0.55 at 25°C.
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