Registration Dossier
Registration Dossier
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EC number: 203-715-8 | CAS number: 109-88-6
Partition coefficient
Administrative data
Link to relevant study record(s)
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):
- 0.77
- at the temperature of:
- 20 °C
Additional information
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