CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Trimethoxysilane appears as a colorless liquid. Slightly soluble in water and denser than water. Hence floats on water. Very toxic by ingestion, inhalation or skin absorption. May also be corrosive to skin and eyes. |
|---|---|
| Color/Form | Liquid |
| Boiling Point | 84 °C |
| Melting Point | -115 °C |
| Solubility | Hydrolyzes rapidly in water |
| Density | 0.860 g/cu cm at 20 °C |
| Vapor Pressure | 76.0 [mmHg] |
| Decomposition | When heated to decomp, it emits acrid smoke and irritating fumes. |
| Heat of Combustion | -2.46X10-9 J/kmol |
| Polymerization | Hazardous polymerization may occur when exposed to heat or other catalysts. |
| Refractive Index | Index of refraction: 1.3687 at 20 °C |
| Kovats Retention Index | 650 |
| Other Experimental Properties | Organosilanes containing one or more Si--H bonds have excellent reducing capabilities. /Organosilanes/ |
| Chemical Classes | Metals -> Metalloid Compounds (Silicon) |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H225:Flammable liquids H319:Serious eye damage/eye irritation H330:Acute toxicity,inhalation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 121.19 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 3 |
| Exact Mass | 121.03209568 g/mol |
| Monoisotopic Mass | 121.03209568 g/mol |
| Topological Polar Surface Area | 27.7 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 31.7 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Trimethoxysilane appears as a colorless liquid. Slightly soluble in water and denser than water. Hence floats on water. Very toxic by ingestion, inhalation or skin absorption. May also be corrosive to skin and eyes.