Methyltrichlorosilane , 98% , 75-79-6
Synonym(s):
Methyltrichlorosilane;MTS;Trichloro(methyl)silane;Trichloromethylsilane
CAS NO.：75-79-6
Empirical Formula: CH3Cl3Si
Molecular Weight: 149.47
MDL number: MFCD00000481
EINECS: 200-902-6
PRODUCT Properties
| Melting point: | -77 °C |
| Boiling point: | 66 °C (lit.) |
| Density | 1.273 g/mL at 25 °C (lit.) |
| vapor density | 5.2 (vs air) |
| vapor pressure | 150 mm Hg ( 25 °C) |
| refractive index | n |
| Flash point: | 5 °F |
| storage temp. | Flammables area |
| solubility | sol methylene chloride. |
| form | liquid |
| Specific Gravity | 1.275 |
| color | colorless |
| Odor | Sharp, irritating odor |
| explosive limit | 5.5-10.4%(V) |
| Water Solubility | REACTS |
| FreezingPoint | -77.8℃ |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| BRN | 1361381 |
| Stability: | Stable, but reacts violently with water. Highly flammable. Incompatible with moisture, water, strong bases, strong acids, strong oxidizing agents. |
| InChIKey | JLUFWMXJHAVVNN-UHFFFAOYSA-N |
| CAS DataBase Reference | 75-79-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Silane, trichloromethyl-(75-79-6) |
| EPA Substance Registry System | Methyltrichlorosilane (75-79-6) |
Description and Uses
Methyltrichlorosilane is a colorless liquid witha sharp hydrochloric acid-like odor. Molecularweight 5 149.48; Boiling point = 66℃; Freezing/Meltingpoint 5290℃; Vapor pressure 5 146.7 mmHg at 18℃;Flash point = 2 6.2℃; 2 8℃ (cc); Autoignition temperature $404℃. Explosive limits: LEL 5 7.6%; UEL $20%.Hazard Identification (based on NFPA-704 M RatingSystem): Health 3, Flammability 3, Reactivity 2 . Reactswith water.
Methyltrichlorosilane is widely used as precursor to organosilicon compounds; silylating agent and Lewis acid. MeSiCl3 is an effective Lewis acid in the condensation of carboxylic acids with alcohols and amines.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H225-H302+H312-H314-H331-H335 |
| Precautionary statements | P210-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | F,Xi,C |
| Risk Statements | 11-14-36/37/38-37-35-22-21-20 |
| Safety Statements | 26-39-45-36/37/39 |
| RIDADR | UN 1250 3/PG 1 |
| WGK Germany | 1 |
| RTECS | VV4550000 |
| F | 10-21 |
| Autoignition Temperature | >760 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | I |
| HS Code | 29310095 |
| Hazardous Substances Data | 75-79-6(Hazardous Substances Data) |
| Excepted Quantities | Not Permitted as Excepted Quantity |
