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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Description of key information

There are no exposure related observations in humans available for potassium methanolate. The abiotic hydrolysis of potassium methanolate under aqueous conditions results in the formation of methanol and potassium hydroxide. The latter dissociates into the corresponding cations (K+) and anions (OH-). For hazard assessment of potassium methanolate information on its hydrolysis/dissociation products was taken into account. In addition, supporting information is available for sodium hydroxide (CAS No. 1310-73-2), which is the hydrolysis product of the structurally related sodium methanolate (CAS No. 124-41-4). Like potassium methanolate, sodium methanolate reacts violently with tissue water. This results in the formation of similar hydrolysis products, methanol and sodium hydroxide. The latter dissociates into the corresponding cations (Na+) and anions (OH-). Please refer to the respective endpoint summaries in Section 7.5 Repeated dose toxicity and 7.8 Toxicity to reproduction for details on the available exposure-related observations in humans.

Additional information