Gelest, Inc. TRIMETHYLSILANE SIT8570.0

Additional Properties Hydrolytic Sensitivity 3: reacts with aqueous base Application Employed in plasma treatment of surfaces.1 Treatment of titanium alloys and stainless steel surfaces inhibits biofilm formation.2 Fieser F&F: Vol. 1, p 1235; Vol. 2, p 441; Vol. 13, p 101; Vol. 16, p 292. Reference 1. Hendricks, N. et al. Semiconductor Int'l. 2000, 23, 95. 2. Ma, Y. et al. Antimicrob. Agents Chemother. 2012, 56, 5923. Safety Hazard Info ihl rat, LC50: >5,000 ppm/1H Packaging Under Helium Tri-substituted Silane Reducing Agent Organosilanes are hydrocarbon-like and possess the ability to serve as both ionic and free-radical reducing agents. These reagents and their reaction by-products are safer and more easily handled and disposed than many other reducing agents. The metallic nature of silicon and its low electronegativity relative to hydrogen lead to polarization of the Si-H bond yielding a hydridic hydrogen and a milder reducing agent compared to aluminum-, boron-, and other metal-based hydrides. A summary of some key silane reductions are presented in Table 1 of the Silicon-Based Reducing Agents brochure. Trimethylsilane, 3MS; 2-Methyl-2-silapropa ne; Trimethylsilylhydrid e ΔHcomb: -3,206 kJ/mol ΔHform: -163 kJ/mol ΔHvap: 24.3 kJ/mol Dipole moment: 0.52 debye Vapor pressure, 25 °C: 1,218 mm Critical temperature: 158.85 °C Critical pressure: 31.48 atm Potential reducing agent that will produce low boiling hexamethyldisiloxane by-product Extensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catal yzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007