Tetramethoxysilane → HCID 23669514, compound

Participants

Reaction Steps

A solution of 91.2 gm (0.7 mol) of tetramethoxy-silane in 100 ml of methanol was mixed with a solution of 33.0 gm of 85% potassium hydroxide solution (0.5 mol KOH) in 200 ml of methanol. The mixture was heated for about 15 minutes under reflux. Subsequently methanol and excess tetramethoxy-silane were distilled off under a water jet vacuum. Instead of the theoretically expected 88.2 gm (0.5 mol) of potassium trimethoxysilanolate, 84.5 gm of solid potassium salts were obtained, that is, in addition to potassium trimethoxy-silanolate, also a small amount of oligopotassium oligomethoxy-silanolates were obtained.

Provenance & Evidence