Tetramethyl Orthosilicate CAS 681-84-5

① Acts Tetramethyl orthosilicate as a core silica source for preparing silica sol, aerogel and optical glass with high purity and uniform particle size in material industry.

② Serves Tetramethyl orthosilicate CAS 681-84-5 as a crosslinking agent and silane intermediate for synthesizing silicone resins, coatings and adhesives to improve hardness and thermal resistance.

③ Functions as a precursor for semiconductor silica thin films via sol-gel process, enhancing insulation and dielectric performance of electronic components.

Store Tetramethyl orthosilicate CAS 681-84-5 at 5-25℃ in sealed amber glass/HDPE drums in a cool, dry, well-ventilated fire-proof area, away from open fire, strong oxidants, acids, alkalis and moisture. Wear nitrile gloves, safety goggles and vapor mask; avoid inhalation, skin/eye contact & ingestion to prevent mild irritation and methanol release from hydrolysis. Reseal tightly post-use, keep away from direct sunlight. Dispose via licensed hazardous channels, prohibit mixing with water/reactive chemicals, no inhibitor required for storage.

Tetramethyl orthosilicate CAS 681-84-5 is a high-purity (≥99%) colorless liquid with excellent hydrolyzability, featuring four methoxy groups for complete silica formation.

Tetramethyl orthosilicate offers fast sol-gel reaction rate, good solubility in organic solvents, and low impurity content; it enables precise control of silica structure, high film compactness and superior material performance, cost-effective for large-scale production with stable chemical properties under anhydrous storage.