Registration Dossier
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EC number: 221-053-8 | CAS number: 2986-54-1
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:
- 20 Mar 2015 to 26 Mar 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 123 (Partition Coefficient (1-Octanol / Water), Slow-Stirring Method)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Staatliches Gewerbeaufsichtsamt Hildeshelm
- Type of method:
- other: Slow-Stirring
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- 5.061
- Temp.:
- 25 °C
- pH:
- 5.6
- Conclusions:
- A log Kow of 5.061 (at 25°C, pH 5.6) was determined for the test substance according to OECD 123.
Reference
Results
Table of results
Replicate number |
Test duration (h) |
Measured concentration |
Pow |
Log Pow |
||||
in n-octanol (mg/L) |
in Aq. phase (mg/L) |
Single |
Mean |
SD +/- |
CV |
|||
1 |
64.33 |
18106 |
0.155 |
116505 |
5.07 |
5.09 |
0.04 |
0.87 |
69.33 |
20019 |
0.161 |
124713 |
5.10 |
||||
88.33 |
20080 |
0.141 |
141936 |
5.15 |
||||
93.33 |
18187 |
0.161 |
112712 |
5.05 |
||||
2 |
64.33 |
18420 |
0.171 |
107940 |
5.03 |
5.06 |
0.05 |
0.97 |
69.33 |
19894 |
0.176 |
112962 |
5.05 |
||||
88.33 |
18853 |
0.179 |
105055 |
5.02 |
||||
93.33 |
18712 |
0.139 |
134928 |
5.13 |
||||
3 |
64.33 |
18781 |
0.188 |
100023 |
5.00 |
5.03 |
0.04 |
0.85 |
69.33 |
19384 |
0.195 |
99523 |
5.00 |
||||
88.33 |
19273 |
0.175 |
110155 |
5.04 |
||||
93.33 |
19508 |
0.159 |
122754 |
5.09 |
||||
Log Pow, Av = 5.061
σ Log Pow, Av = 0.020
aq.phase = Aqueous phase
Pow= Partition coefficient (n-octanol / water)
Log Pow= Decadic logarithm of the partition coefficient (n-octanol / water)
SD = Standard Deviation
CV = Coefficient of variation (%)
Log Pow, Av= Weighted average value of log Pow
σLog Pow, Av = Weighted standard deviation
Conclusions
The partition coefficient (n-octanol/water) (log POW) of the test substance was determined at a test temperature of 25 ± 1 °C and at a pH value of 5.6 from three independent replicates (test vessels) with four sub-replicates (samples) to be 5.061 ± 0.020.
Description of key information
Log Pow: 5.061 at 25 °C, pH = 5.6 (OECD Guideline 123, slow stirring)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 5.061
- at the temperature of:
- 25 °C
Additional information
A Log Pow value of 5.061 (at 25 °C, pH = 5.6) was determined for the test substance according to OECD Guideline 123.
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