Bis[3-(Trimethoxysilyl)Propyl]Amine belongs to the family of organosilane compounds. You often find this chemical in the form of colorless to pale yellow oily liquid. The structure comprises two 3-(trimethoxysilyl)propyl groups linked by an amine bridge, which gives it flexibility in bonding with a variety of materials. Many chemists note the distinct smell that sets it apart from simpler silanes. Having a molecular formula of C12H31NO6Si2, its molar mass reaches approximately 341.55 g/mol. By looking closely at its molecular structure, you notice silicon and nitrogen atoms play central roles in its ability to form durable bonds between inorganic surfaces and organic polymers.
This substance appears most often as a clear liquid. Sometimes, suppliers produce it in solid states, ranging from flakes to powdered, crystalline, or even pearl-like forms. Each choice depends on how manufacturers tailor it for industrial applications. Its density hovers around 1.02 g/cm³ at 25°C, reflecting the combination of siloxane bonds and organic chains in its makeup. The boiling point sits near 290°C under standard pressure, which means it handles high-temperature environments well. It dissolves readily in ethanol, methanol, acetone, or other common organic solvents, but water causes hydrolysis, releasing methanol as a by-product. Because of its moisture-reactivity, even exposure to humid air sets off chemical changes; experienced handlers use dry conditions to keep it stable and predictable.
Examining Bis[3-(Trimethoxysilyl)Propyl]Amine reveals something interesting about silane chemistry. The trimethoxysilyl groups hydrolyze easily in water, creating silanol groups that condense to form robust siloxane networks. The central amine functions as a bridge between two silicon atoms, which increases flexibility for linking two surfaces together—a feature prized in industries like coatings, adhesives, and composite fabrication. The silane reacts vigorously with glass, metals, and ceramics, creating tough chemical bonds. It unlocks strong molecular adhesion in epoxy resins or polyurethane blends, showing a measurable improvement in shear strength, moisture resistance, and thermal durability.
Buyers usually encounter Bis[3-(Trimethoxysilyl)Propyl]Amine packaged in steel drums or high-density plastic containers, especially for large industrial needs. In smaller research labs, you might find it in amber glass bottles for light and moisture protection. Flake, powder, liquid, crystalline, and pearl forms all exist; the choice depends on how the facility intends to use it. Large-scale manufacturers produce custom solutions, sometimes dissolving it directly in compatible solvents for immediate processing. In electronics and optics, this compound strengthens adhesion of sol-gel coatings, seals optical fibers, or creates anti-corrosive barriers on metals. In the construction sector, it acts as a coupling agent in mineral-filled composites, improving durability and bonding strength over time.
Customers demand precise details about chemical specifications. Industrial-grade Bis[3-(Trimethoxysilyl)Propyl]Amine purity averages above 97%. Water content stays low, less than 0.5%, to prevent premature hydrolysis during storage and transport. Viscosity lands in the 5-20 cSt range, making it easy to pump and mix. The HS (Harmonized System) code assigned to this product is typically 2920909090, classifying it as an organic chemical with silane functionality and enabling smooth cross-border trade. Customers often request COAs (Certificates of Analysis) to confirm quality with each shipment.
Understanding density, volatility, and safe handling matters to everyone in a lab or factory. While its vapor pressure remains low at room temperature, Bis[3-(Trimethoxysilyl)Propyl]Amine can still volatilize in warm or poorly ventilated spaces. GHS (Globally Harmonized System) classifies it as hazardous, mainly due to the risk of skin and eye irritation, plus potential respiratory effects if inhaled in vapor form. Direct exposure can cause burns and sensitization. Methanol, the hydrolysis byproduct, adds another safety layer due to its toxic and flammable nature. Teams working with this material rely on chemically resistant gloves, splash-proof goggles, and robust local exhaust ventilation to reduce risk. Incorrect storage or use around open flames or heat sources can trigger dangerous reactions. Firefighters know to use dry chemical, foam, or CO2 extinguishers for spills or fires, thanks to the risk of noxious combustion gases.
Producing Bis[3-(Trimethoxysilyl)Propyl]Amine means starting with silicon-based raw materials and propylamine, followed by precision-controlled methoxylation. Large chemical companies invest in advanced reactor systems to control temperature, feed rates, and purity at each stage. Any deviation affects quality, long-term storage, and user safety. Trustworthy suppliers undergo regular quality audits, hold REACH registrations in Europe, and meet global safety standards. Reliable sourcing lowers the chance of impurities, unexpected reactivity, and costly batch failures in downstream manufacturing. Customers look for clear traceability from raw material to final shipment, especially for sectors where even tiny contaminants can ruin electronics or medical coatings.
Dealing with hazardous chemicals drives a need for responsible management, especially for substances that hydrolyze rapidly and release toxins like methanol. Exposure to Bis[3-(Trimethoxysilyl)Propyl]Amine irritates skin, eyes, and the respiratory tract. Chronic or repeated contact increases the risk of allergic reactions or long-term sensitization. Best practices involve sealed systems, spill containment trays, and ready access to emergency showers and eyewash stations. Environmental health officers stress the importance of not releasing this chemical untreated into drains or surface water, since its breakdown products impact aquatic life. Modern facility managers invest in solvent recovery and waste treatment solutions, which reduces the environmental footprint and ensures compliance with chemical safety and clean water laws.
Meeting modern manufacturing and safety standards calls for better employee training and cleanroom controls, especially in precision industries. Teams that mix, handle, or dispose of Bis[3-(Trimethoxysilyl)Propyl]Amine rely on practical, hands-on guidelines and routine audits. Improved air handling, personal protective equipment, and emergency preparation help keep incidents low. Software systems allow for real-time inventory tracking and hazard communication, so workers know exactly what’s in each container, how much is available, and what to do if something goes wrong. Efforts to create less harmful alternatives keep growing, but the unique chemistry of Bis[3-(Trimethoxysilyl)Propyl]Amine means it continues to hold an important role in advanced material science and industrial engineering.
