2,2-dimethylbutane

Partition coefficient

Link to relevant study record(s)

Reference

Endpoint:

partition coefficient

Type of information:

not specified

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

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. This is a peer reviewed handbook and it is therefore accepted that this data source is reasonably reliable.

Principles of method if other than guideline:

No method specified as data was obtained from handbook.

Type of method:

other: No specified

Partition coefficient type:

octanol-water

Key result

Type:

log Pow

Partition coefficient:

3.82

Remarks on result:

other: Temp and ph not specified

Conclusions:

The Log Pow of 2,2-dimethylbutane is reported to be 3.82.

Executive summary:

The Log Pow of 2,2-dimethylbutane is reported to be 3.82. No information on the primary source of this data or 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 partition coefficient of 2,2 -dimethylbutane is 3.82.

Based on an analogue approach supporting data are available and read-across to 2,2 -dimethylbutane.

The log P_owfor isohexane is reported to be 3.6 at 20°C and this has been read across to Hydrocarbons, C6, isoalkanes, <5% n-hexane.This was taken from a peer reviewed handbook (CRC 2008) which is considered reliable for assessment.

Key value for chemical safety assessment

Log Kow (Log Pow):

3.82