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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:
other: estimated data
Adequacy of study:
key study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Data is from Human & Environmental Risk Assessment
Justification for type of information:
Data is from Human & Environmental Risk Assessment
Qualifier:
according to guideline
Guideline:
other: refer principle below
Principles of method if other than guideline:
Log Kow of test chemical calculated by the methods of Leo and Hansch (1979), and of Roberts (1991), using the method in the CSARA AE Workbook (ERASM 2005b)
GLP compliance:
not specified
Type of method:
other: estimated data
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
- Name of test material: Alcohols, C8-18, ethoxylated
- IUPAC name: Alcohols, C8-18, ethoxylated (1 - 2.5 moles ethoxylated)
- Molecular formula: (Cx-y AEn) or (C8-18 AE1- 2.5)
- Substance type: Organic
- Physical state: Liquid (viscous)
Analytical method:
not specified
Key result
Type:
log Pow
Partition coefficient:
>= 2.97 - <= 8.37
Remarks on result:
other: other details not available.

C/EO

8

9

10

11

12

13

14

15

16

18

0

3.03

3.57

4.11,

4.65,

5.19

5.73

6.27

6.81

7.35

8.43

1

3.07

3.61

4.15

4.69

5.23

5.77

6.31

6.85

7.39

8.47

2

2.97

3.51

4.05

4.59

5.13

5.67

6.21

6.75

7.29

8.37

 C =carbon chain units

 EO= ethylene oxide units

Conclusions:
According to the name of test chemical Alcohols C8-18, ethoxylated (1 - 2.5 moles ethoxylated) (CAS no. 157707-43-2) it contains different carbon chain length and ethoxylation degree. Partition coefficent log Pow of test chemical can be in range of 2.97 - 8.37 dimensionless as the carbon chain length increases partition coeffcient is also increases.
Executive summary:

According to the name of  test chemical Alcohols C8-18, ethoxylated (1 - 2.5 moles ethoxylated) (CAS no. 157707-43-2) it contains different carbon chain length and ethoxylation degree. Partition coefficent log Pow of test chemical can be in range of 2.97 - 8.37 dimensionless as the carbon chain length increases partition coeffcient is also increases.

Description of key information

According to the name of  test chemical Alcohols C8-18, ethoxylated (1 - 2.5 moles ethoxylated) (CAS no. 157707-43-2) it contains different carbon chain length and ethoxylation degree. Partition coefficent log Pow of test chemical can be in range of 2.97 - 8.37 dimensionless as the carbon chain length increases partition coeffcient is also increases.

Key value for chemical safety assessment

Additional information

According to the name of  test chemical Alcohols C8-18, ethoxylated (1 - 2.5 moles ethoxylated) (CAS no. 157707-43-2) it contains different carbon chain length and ethoxylation degree. Partition coefficent log Pow of test chemical can be in range of 2.97 - 8.37 dimensionless as the carbon chain length increases partition coeffcient is also increases.