I am trying to prepare NaOH solution in methanol (16 mmol of NaOH in 40 ml of methanol) but the solubilization of NaOH in methanol is not complete when I add the NaOH pellets directly in the methanol under stirring. I already tried to heat the solution at 50C but it did not work. (I can not have water in the solution then I can not solubilize the NaOH in water and add it in the methanol.)