Ethylene

Partition coefficient

Link to relevant study record(s)

Reference

Endpoint:

partition coefficient

Type of information:

experimental study

Adequacy of study:

key study

Study period:

not specified

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: GLP status not known, information from a published handbook, acceptable with restrictions

Justification for type of information:

N/A

Principles of method if other than guideline:

The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to Exploring QSAR, Hydrophobic, Electronic and Steric Constants states that it is an extensive compilation of published data. Each record is evaluated and the preferred value is identified for each substance. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.

GLP compliance:

not specified

Remarks:

no data reported

Type of method:

shake-flask method to: flask method

Partition coefficient type:

octanol-water

Specific details on test material used for the study:

not specified

Key result

Type:

log Pow

Partition coefficient:

1.13

Temp.:

25 °C

pH:

7

Details on results:

No further details provided. Temperature and pH are assumed

N/A

Conclusions:

The log kow of ethylene is 1.13

Executive summary:

No information on the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint.

Description of key information

The log kow of ethylene is 1.13

Key value for chemical safety assessment

Log Kow (Log Pow):

1.13

at the temperature of:

20 °C

Additional information

The Handbook by Hansch et al. (1995) is peer reviewed and is considered reliable and acceptable for use as a key study for this endpoint. The supporting study (Meylan and Howard 1995) is a peer reviewed QSAR and reports a value of 1.27 and supports the value reported in the key study.