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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

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:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Version / remarks:
1995
GLP compliance:
no
Type of method:
flask method
Partition coefficient type:
octanol-water
Analytical method:
photometric method
Type:
Pow
Partition coefficient:
0.014
Temp.:
20 °C
pH:
6.78
Type:
log Pow
Partition coefficient:
-1.875
Temp.:
20 °C
pH:
6.78

ratio o/w water phase n-octanol phase Pow logPow average logPow
c (g/l) c (g/l)
70/30 0.3857 0.0078 0.0201 -1.696013 -1.7988
70/30 0.3869 0.0049 0.0125 -1.901536
50/50 0.3848 0.0042 0.0108 -1.966142 -1.9171
50/50 0.3838 0.0052 0.0136 -1.868056
30/70 0.3786 0.0045 0.0118 -1.929078 -1.9078
30/70 0.3776 0.0049 0.0130 -1.886491
pH of test solution 6.78
average Pow 0.0136 average logPow -18.746
std. dev. Pow 0.0023 std. dev. logPow 0.066
Conclusions:
logPow is -1.8746 at 20 °C and pH 6.78.
Executive summary:

Method

Partition coefficient estimated using shake flask method according to OECD 107.

Results

logPow is -1.8746 at 20 °C and pH 6.78.

Description of key information

logPow = -1.8746 at 20 °C and pH 6.78.

Key value for chemical safety assessment

Log Kow (Log Pow):
-1.875
at the temperature of:
20 °C

Additional information

Shake flask method as described in OECD guideline 107.