75-79-6
Product Name:
Methyltrichlorosilane
Formula:
CH3Cl3Si
Synonyms:
Methyltrichlorosilane;MTS;Trichloro(methyl)silane;Trichloromethylsilane
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Methyltrichlorosilane appears as a colorless fuming liquid with a pungent odor. Flash point 8 °F. Vapor and liquid may cause burns. Denser than water. Vapors are heavier than air. |
|---|---|
| Color/Form | COLORLESS LIQUID |
| Odor | ACRID ODOR, SHARP LIKE HYDROCHLORIC ACID |
| Boiling Point | 152 °F at 760 mmHg (EPA, 1998) |
| Melting Point | -108 °F (EPA, 1998) |
| Flash Point | 15 °F (EPA, 1998) |
| Solubility | Decomposes in ethanol |
| Density | 1.27 at 77 °F (EPA, 1998) - Denser than water; will sink |
| Vapor Density | 5.17 (EPA, 1998) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 167.0 [mmHg] |
| Stability/Shelf Life | Decomp in moist air, creating hydrochloric acid with odor threshold of 1 ppm. |
| Autoignition Temperature | greater than 760 °F (USCG, 1999) |
| Decomposition | Rapid hydrolysis precludes measurements. Possible toxic effects may be due to formation of hydrochloric acid. |
| Heat of Vaporization | 89.3 BTU/LB |
| Surface Tension | 20.3 DYNES/CM= 0.0203 N/M @ 20 °C |
| Refractive Index | Index of refraction: 1.4085 at 25 °C/D |
| Kovats Retention Index | 594 600 598.9 598 |
| Other Experimental Properties | Organo-functional silanes are noted for their ability to bond organic polymer systems to inorganic substrates. /Silane cmpd/ |
| Chemical Classes | Toxic Gases & Vapors -> Chlorosilanes |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H225:Flammable liquids H314:Skin corrosion/irritation H331:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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 | 149.47 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 147.906960 g/mol |
| Monoisotopic Mass | 147.906960 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 28.4 |
| 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
Methyltrichlorosilane appears as a colorless fuming liquid with a pungent odor. Flash point 8 °F. Vapor and liquid may cause burns. Denser than water. Vapors are heavier than air.