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EC number: 279-914-9 | CAS number: 82199-12-0
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:
- 2011
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable method for pigments with low solubilities.
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: ETAD Analytical Expert Group
- Version / remarks:
- method for substances with very low solubility in both, water and n-octanol
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Analytical method:
- photometric method
- Type:
- Pow
- Partition coefficient:
- 235
- Temp.:
- 24 °C
- pH:
- ca. 7
- Type:
- log Pow
- Partition coefficient:
- 2.37
- Temp.:
- 24 °C
- pH:
- ca. 7
Reference
The octanol and the water solubility were both determined at 24-25 °C.
It is not possible to enter a temperature range in the field above, therefore 24 °C was taken as the temperature value.
Calculation:
log Kow = logP = log (c(n-octanol)/c(water))
(c: individual solubilities; see below).
|
PY194 |
Octanol solubility [µg/L] |
2020 |
Water solubility [µg/L] |
8.60 |
POW |
235 |
log POW |
2.37 |
Description of key information
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 2.37
- at the temperature of:
- 24 °C
Additional information
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