Method for the removal of siloxane dissolved in the solvent employed in the preparation of trimethoxysilane via methanol-silicon metal reaction.

(57) A summary and the purpose In manufacture of the トリメトキシ silane by the reaction of metal silicon and methanol, the method of removing the siloxane dissolved into the used solvent is offered. Composition In manufacture of the トリメトキシ silane from metal silicon and methanol which use a solvent, In removing the siloxane dissolved in the solvent, it is the method of consisting of contacting a solvent to the compound of boron/oxygen, and an alkaline metal alkoxide arbitrarily like sodium methoxide.