Methanolic potassium hydroxide is prepared by dissolving 5 g of KOH pellets in 100 ml of methanol and store the solution at room temperature in a tightly capped glass bottle.
Dear Aws Maseer Nejres thank you for posting this interesting technical question. Potassium hydroxide (KOH) is quite soluble in simple alcohols like methanol or ethanol. Thus you can achieve different concentrations of methanolic KOH solution by dissolving KOH pellets in the required amount of methanol at room temperature (see e.g. the following link: http://cshprotocols.cshlp.org/content/2006/1/pdb.rec8238.full?text_only=true). The final concentration depends on what you plan to do with the solution. Some stirring or shaking might be required to achieve complete dissolution of the pellets. When handling methanolic potassium hydroxide solution always wear safety glasses. The solution must never come in contact with the eyes!
Good luck with your work and best wishes!
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