Registration Dossier

Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: testing method performed according to OECD107

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report Date:
2009

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Analytical method:
photometric method

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
2.08
Temp.:
23 °C
pH:
ca. 7

Any other information on results incl. tables

Table 1: Results in detail

 determ. no. stock solution [ml]  water[ml]  test substanceconc. in n-octanol phase[mg/l] test substance conc. in water phase[mg/l]  log Pow
A1 5 10 831,6 6,8 2,09
A2 5 10 824,5 6,6 2,10
B1 10 10 836,8 6,9 2,08
B2 10 10 828,7 7,1 2,07 
C1 20 10 838,0 7,3 2,06
C2 20 10 833,5 7,3 2,06
 mean ---  ---  ---  ---  2,08 

Stock solution: 829,0 mg/I

Cone. of filtered stock solution: 873,3 mg/I (= 105 % recovery rate)

Applicant's summary and conclusion

Conclusions:
Due to the partition coefficient n-octanol-water of 2.08 bioaccumulation is not expected.
Executive summary:

The partition coefficient n-octanol/water was determined according to OECD 107 as 2.08 at 23°C.