Typical Physical Properties of LS-ND43 Dichloromethyltriethoxysilane
Silfluo Code: | Silfluo LS-ND43 |
Chemical Name: Synonyms | Dichloromethyltriethoxysilane
|
CAS No.: EINECS No.: | 19369-03-0 242-998-1 |
Molecular Formula: | C7H16Cl2O3Si |
Molecular Weight: | 247.19 |
Appearance: | Colorless transparent to slightly yellowish liquid |
Density (ρ20°C, g/cm³) | 1.01~1.20 |
Refractive Index (n25/D) | 1.4660~1.4870 |
Purity: | 95% min |
Features of LS-ND43 Dichloromethyltriethoxysilane
1. Superior Alpha-Effect Reactivity: The intense electron-withdrawing nature of the dichloromethyl group fundamentally supercharges the hydrolytic kinetics of the ethoxy groups, enabling exceptionally fast moisture-scavenging and crosslinking speeds.
2. Versatile Nucleophilic Substitution Platform: The two reactive C-Cl bonds on the alpha-carbon are highly susceptible to nucleophilic attack, making it an ideal, high-yield synthetic precursor for creating complex Alpha-amino, Alpha-mercapto, or Alpha-isocyanato functional silanes.
3. Controlled 3D Crosslinking: Provides a highly stable trifunctional ethoxy base that, upon hydrolysis and condensation, forms a dense, durable, and highly crosslinked inorganic siloxane network.
4. Halogen-Driven Surface Modification: The unique dichloro functionality can be leveraged to drastically alter the surface energy, oleophobicity, and chemical resistance of specifically targeted inorganic substrates.
Applications of LS-ND43 Dichloromethyltriethoxysilane
1. Synthesis of Premium Alpha-Functional Silanes: Serves as the primary, high-value chemical intermediate for the industrial production of specialized Alpha-silane coupling agents. These advanced derivatives are absolutely essential for formulating the next generation of fast-curing, tin-free SPUR and MS Polymer sealants.
2. Specialty Silicone Resin Modification: Utilized as a critical reactive monomer to seamlessly introduce dichloromethyl functionality into siloxane backbones. This advanced structural modification significantly elevates the chemical inertness, solvent resistance, and thermal stability of aerospace-grade coatings and composites.
3. Hyper-Reactive Surface Primers: Acts as an ultra-high-activity adhesion promoting component in specialized primer formulations, ensuring rapid, moisture-triggered covalent bonding to notoriously difficult substrates under ambient, room-temperature conditions.
Packaging of LS-ND43 Dichloromethyltriethoxysilane
In 20kg pail, 200kg drum and 950kg IBC
Safety and Storage of LS-ND43 Dichloromethyltriethoxysilane
Keep in a cool, strictly dry, and well-ventilated environment, aggressively avoiding direct sunlight, heat, sparks, and open flames. The product is highly sensitive to ambient moisture and may release trace amounts of hydrogen chloride (HCl) upon severe hydrolysis. The shelf life is a minimum of 24 months from the date of manufacture when stored at or below 25°C in tightly sealed, original unopened containers.
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