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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 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Qualifier:
according to guideline
Guideline:
other: "Method for Testing the Partition Coefficient (n-octanolfwater)" in the "Testing Methods for New Chemical Substances" (Japan)
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
ca. 2.2
Temp.:
25 °C
pH:
ca. 7.4

Measurement results:

Name

tR

k

Log k

Log Kow

Reference items

Thiourea

(for dead time; t0)

1.97

Average t0= 1.97

1.97

Acetanilide

3.00

0.523

-0.282

1.0

3.00

0.523

-0.282

1.0

Acetophenone

4.37

1.218

0.086

1.7

4.37

1.218

0.086

1.7

Methyl benzoate

7.17

2.640

0.422

2.1

7.17

2.640

0.422

2.1

Trichloroethylene

12.50

5.345

0.728

2.4

12.50

5.345

0.728

2.4

Allyl phenyl ether

15.25

6.741

0.829

2.9

15.25

6.741

0.829

2.9

Bromobenzene

17.40

7.832

0.894

3.0

17.38

7.822

0.893

3.0

Test item

HFO-1233zd(trans)

7.40

2.756

0.440

2.2

7.40

2.756

0.440

2.2

Conclusions:
The substance has a log Kow of 2.2.
Executive summary:

The partitioning coefficient octanol-water (Kow) of the substance was determined in a study in accordance with OECD TG 117 (HPLC method) and in compliance with GLP criteria (Kurume Laboratory, 2009). In this study, the retention time of the test item in a HPLC with a 'L-column ODS' column was compared to retention times of reference substances with known log Kow. From the results, a log Kow of 2.2 was determined for the test substance.

Description of key information

A log Kow of 2.2 was determined for the test substance.

Key value for chemical safety assessment

Log Kow (Log Pow):
2.2
at the temperature of:
25 °C

Additional information

The partitioning coefficient octanol-water (Kow) of the substance was determined in a study in accordance with OECD TG 117 (HPLC method) and in compliance with GLP criteria (Kurume Laboratory, 2009). In this study, the retention time of the test item in a HPLC with a 'L-column ODS' column was compared to retention times of reference substances with known log Kow.