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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Magnesium methanolate hydrolysis very fast into methanol and magnesium hydroxide. The determination of the partitions coefficient is technically not feasible with magnesium methanolate and the endpoint is waived.

The half life of magnesium methanolate was determined to be T1/2 < 1 min (Hydrolysis as a Function of pH). In all experiments the hydrolysis of magnesium methanolate in buffer solutions (pH4, pH7, pH9) takes place immediately. Hydrolysis rates of >= 90% within 1 minute reaction time are observed.

As key information and for the chemical safety assessment the LogPow of the hydrolysis product methanol (-0.77) is used. A very low logPow of magnesium methanolate was predicted by QSAR according to EPI Suite 4.11 (KOWWIN v. 1.68) and the data are used as supporting data. The predicted LogPow is -1.99 at 25°C. For magnesium hydroxide as an inorganic substance no logPow can be determined.

Based on the available data it can be considered that magnesium methanolate and its hydrolysis products methanol and magnesium hydroxide have a low potential for bioaccumulation.

Key value for chemical safety assessment

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

Additional information