3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2

1. 3-Thiocyanatopropyltriethoxysilane is primarily used as a bifunctional, sulfur-containing organosilane coupling agent to improve adhesion between organic polymers and inorganic materials such as glass, metals, silica, and mineral fillers .
2. In the rubber industry, the compound is employed in combination with white fillers containing silanol groups (e.g., silica, talc, clay) to enhance the mechanical properties of vulcanizates, including tensile strength, tear resistance, abrasion resistance, and compression set, while also reducing 3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2 viscosity and improving processability .
3. The thiocyanate functional group acts as a masked isothiocyanate and can form coordination complexes with precious metal ions such as silver, gold, palladium, and platinum, making it useful as a complexing agent and potential adhesion promoter for metal surfaces .
4. Researchers utilize this product as a surface modifier and crosslinking agent in coatings, sealants, adhesives, and composites to improve chemical resistance, hydrolytic stability, and dispersion of fillers in polymer matrices .

1. 3-Thiocyanatopropyltriethoxysilane must be stored in a tightly sealed container under inert atmosphere (nitrogen or argon) in a cool, dry, and well-ventilated environment, protected from moisture as it is moisture sensitive and undergoes hydrolysis . Recommended storage temperature is room temperature in a cool, dark place below 15°C .
2. 3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2 is classified with GHS hazard statements H302 (Harmful if swallowed), H412 (Harmful to aquatic life with long-lasting effects), and R52 (Harmful to aquatic organisms), with signal word "Warning" . Safety data indicates acute toxicity and potential irritant properties .
3. Personnel must wear chemical-resistant gloves, tightly fitting safety goggles with side-shields, and protective clothing when handling this substance, ensuring adequate ventilation in work areas (preferably a chemical fume hood) . Follow safety statements S23 (Do not breathe vapors) and S24 (Avoid skin contact) .
4. Keep 3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2 away from heat, sparks, open flames (flash point 112-138°C), and incompatible materials such as strong oxidizing agents . Avoid release to the environment (P273) . Shelf life is typically 1-2 years when stored properly in unopened containers .

1. Isolate the spill area, ensure adequate ventilation, remove all sources of ignition, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and appropriate respiratory protection when 3-Thiocyanatopropyltriethoxysilane is released .
2. Collect 3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2 using non-sparking tools by absorbing with inert materials such as sand, diatomite, earth, or universal binders, and place into suitable closed containers for disposal .
3. Avoid creating vapors or mists during cleanup to prevent respiratory exposure; decontaminate surfaces using appropriate methods; prevent the product from entering drains or water courses as it is harmful to aquatic life with long-lasting effects .
4. Dispose of collected material as hazardous waste according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration, following precautionary statement P501 .

1. 3-Thiocyanatopropyltriethoxysilane is a combustible liquid with flash point ranging from 112°C to 138°C (closed cup) and boiling point of 95°C at 0.1 mmHg ; under fire conditions, hazardous decomposition products include toxic fumes of carbon monoxide, carbon dioxide, nitrogen oxides (NOx), and sulfur oxides .
2. Use 3-Thiocyanatopropyltriethoxysilane CAS 34708-08-2 dry chemical powder, carbon dioxide, alcohol-resistant foam, or water spray to extinguish fires involving the product; do NOT use water jet as it may scatter burning material and react with moisture .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning 3-Thiocyanatopropyltriethoxysilane due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; move containers from the fire area if safe to do so, cool exposed containers with water spray from a protected location, and contain fire runoff to prevent environmental contamination and pollution .