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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

TEGME (measured) :-1.12
TEGBE (measured): 0.56
TEGEE (calculated): -0.96

Key value for chemical safety assessment

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

Additional information

There is no measured value available for the partition co-efficient of this substance. There is however measured data for two substances either side of it in the homologous series of these triethylene glycol ethers. 2-(2-(2 -methoxyyethoxy)ethoxy)ethanol (TEGME) has a measured value of -1.12 for log kow whereas 2-(2-(2 -butoxyyethoxy)ethoxy)ethanol has a value of 0.51. The value for 2-(2-(2-ethoxyyethoxy)ethoxy)ethanol (TEGEE) will fall somewhere in between. The predicted values for the logkow using the Epiwin QSAR are shown below:

 Substance  Measured logKow  QSAR value
 TEGME  -1.12  -1.46
 TEGEE    -0.96
 TEGBE  0.51  0.02

The QSAR seems to underpredict by a value of about 0.35 to 0.45. A corrected value of around -0.6 is predicted for the logkow and used as the key parameter. A justification for read across/interpolation is attached to chapter 13 of the lead registrant's dossier.