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Synonyms: Tetramethoxysilane, TMOS, Methyl orthosilicate, Methyl silicate
Tetramethyl orthosilicate is the chemical compound with the formula Si(OCH3)4. This molecule consists of four methyl groups attached to the hypothetical anion SiO44−. The basic properties are similar to the more popular tetraethyl orthosilicate, which is usually preferred because the product of hydrolysis, ethanol, is less toxic than methanol.
T 8774 (OTTO) Tetramethyl orthosilicate, 98% Cas no 681-84-5 - used in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.
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