"In general, any alkali metal and/or alkaline earth metal hydroxide, such as sodium hydroxide, potassium hydroxide, lithium hydroxide, rubidium hydroxide, cesium hydroxide, calcium hydroxide, magnesium hydroxide, barium hydroxide, strontium hydroxide, or beryllium hydroxide, may be used in the preparation of polyethercyclicpolyols, and may substitute for sodium hydroxide in Equations (1)-(3)." . . . .