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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Remarks:
Test procedure in accordance with generally accepted scientific standards and described in sufficient detail; Result outside the standard range of the shake flask method, but still within the extended range (up to a logP of 5). Also, the measured value is highly consistent with a QSPR based on logP data for lower alkyl methacrylate esters including 2-EHMA.
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
GLP compliance:
no
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water
Type:
log Pow
Partition coefficient:
4.95
Temp.:
20 °C
pH:
ca. 6
Conclusions:
In a valid guideline study the partition coefficient is 4.95 at 20 °C.
Executive summary:

In a valid guideline study the partition coefficient is 4.95 at 20 °C.

Description of key information

logPow 4.95, Jones 2002; OECD 107 (supported by lower alkyl methacrylate category QSPR)

Key value for chemical safety assessment

Log Kow (Log Pow):
4.95
at the temperature of:
20 °C

Additional information

In the key study a logPow value of 4.95 has been determined (Jones, 2002). This is at the limit of the extended reliability range for this method but also consistent with a QSPR based on the lower alkyl methacrylate category.