Sodium trimethylsiloxide

Sodium trimethylsiloxide is an organosilicon compound with the formula NaOSi(CH3)3. It is the sodium salt of the conjugate base derived from trimethylsilanol. A white solid, its molecular structure consists of a cluster with Na-O-Na linkages on the basis of closely related compounds.

The salt is used to prepare trimethylsiloxide complexes by salt metathesis. Trimethylsiloxide is a lipophilic pseudohalide.

It is a source of oxide dianion.

Related compounds

 * Sodium silox, NaOSi(tBu)3   (tBu = C(CH3)3)
 * Potassium trimethylsilanolate