Tetramethyl Orthosilicate (TMOS), known scientifically as methyl silicate and bearing the CAS number 681-84-5, is a fundamental organosilicon compound with a characteristic colorless liquid appearance. Its molecular formula, Si(OCH3)4, reveals a silicon atom bonded to four methoxy groups, bestowing upon it a unique reactivity profile essential for its diverse industrial applications. Understanding the synthesis and inherent chemical properties of TMOS is crucial for optimizing its use as a chemical intermediate.

TMOS is typically synthesized through the reaction of silicon tetrachloride or silicon tetrafluoride with methanol. Various methods are employed, often involving catalysts and specific reaction conditions to achieve high yields and purity. For instance, reactions involving methanol and silicon tetrachloride, sometimes facilitated by catalysts like nickel sulfate or even simple salts like sodium acetate, are common routes. The efficiency of these synthesis pathways is critical for providing a cost-effective and readily available supply of TMOS to the market.

Key chemical properties of TMOS include its relatively low boiling point and its tendency to undergo rapid hydrolysis upon contact with moisture. This hydrolysis reaction yields methanol and silicic acid, which can then condense to form silica or siloxane networks. The speed of this hydrolysis is notably faster than that of tetraethyl orthosilicate (TEOS), making TMOS a preferred choice when faster reaction kinetics are desired in processes like sol-gel synthesis or as a crosslinking agent.

However, these properties also necessitate careful handling. TMOS is flammable and its vapors can be irritating. Therefore, proper ventilation, personal protective equipment (PPE), and storage away from moisture and heat are essential safety precautions. The reactive nature of TMOS, while beneficial for its applications, also demands controlled environments during storage and use.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to producing high-purity TMOS through optimized synthesis routes. By focusing on quality control and efficient production, we ensure that our clients receive a reliable chemical intermediate for their manufacturing needs. Whether you are involved in advanced materials, coatings, or electronics, understanding the chemistry of TMOS is the first step toward unlocking its full potential.

As a fundamental chemical intermediate, the synthesis and properties of Tetramethyl Orthosilicate are central to its value. Its reactivity and application versatility make it a key ingredient for innovation across multiple industries, driven by careful chemical engineering and a commitment to quality.