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Methyltrichlorosilane(75-79-6)

Methyltrichlorosilane(75-79-6)
Product IdentificationBack to Contents
【Product Name】

Methyltrichlorosilane
【Synonyms】

[5-(Benzoylperoxy)-2,5-dimethylhexan-2-yl] benzenecarboperoxoate
2,5-Dimethyl-2,5-hexanedihydroperoxide dibenzoate
2,5-Dimethylhexane-2,5-diyl diperbenzoate
Benzenecarboperoxoic acid, 1,1,4,4-tetramethyl-1,4-butanediyl ester
Kayaester AB
Luperox 118
Perhexa 25Z
Trichloro(methyl)silane
Trichloromethylsilane
【CAS】

2618-77-1
【CAS】

75-79-6
【Formula】

C22H26O6
【Formula】

CH3Cl3Si
【Molecular Weight】

386.44
【Molecular Weight】

149.47999999999999
【EINECS】

200-902-6
【EINECS】

220-050-9
【RTECS】

VV4550000
【RTECS Class】

Primary Irritant
【Beilstein/Gmelin】

1361381
【Beilstein/Gmelin】

3451013
【Beilstein Reference】

3-09-00-01050
【Beilstein Reference】

4-04-00-04212
【EC Index Number】

014-004-00-5
【EC Class】

Reacts violently with water; Highly flammable; Irritant
Physical and Chemical PropertiesBack to Contents
【Appearance】

A colorless fuming liquid with a pungent odor.
【Appearance】

It is generally stored or transported as a mixture, with an inert solid.
【Solubility in water】

Decomposes
【Solubility in water】

Insoluble
【Melting Point】

-90
【Melting Point】

117
【Boiling Point】

66
【Vapor Pressure】

167
【Density】

1.27 g/cm3 (20 C)
【Partition Coefficient】

4.19
【Heat Of Vaporization】

30.2 kJ/mol
【Heat Of Combustion】

-1014 kJ/mol
【Usage】

Intermediate for silicones.
【Vapor Density】

5.17
【Odor threshold】

as hydrochloric acid - 1 ppm
【Refractive Index】

1.412 (20 C)
First Aid MeasuresBack to Contents
【Ingestion】

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. Wash mouth out with water.
【Ingestion】

Seek medical assistance.
【Inhalation】

Causes irritation.
【Inhalation】

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

May cause severe injury or burns.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
【Skin】

Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes.
【Eyes】

See Skin.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
【Eyes】

Immediately flush with running water for at least 20 minutes.
Handling and StorageBack to Contents
【Storage】

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area.
【Storage】

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
【Handling】

Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Do not allow contact with water. Use only in a chemical fume hood.
【Handling】

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Hazards IdentificationBack to Contents
【Ingestion】

Aspiration hazard. May be harmful if swallowed.
【Ingestion】

See Skin.
【Inhalation】

Causes respiratory tract irritation. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
【Skin】

Causes severe skin irritation. Harmful if absorbed through the skin. Substance is rapidly absorbed through the skin. Causes redness and pain.
【Eyes】

Causes severe eye irritation. May cause blindness. Causes redness and pain.
【Hazards】

May explode from heat, shock, friction or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard.
【Hazards】

Toxic hydrogen chloride and phosgene gases may form in fires. Reacts with water or steam to form hydrochloric acid. Vapor forms flammable mixture with air. May form explosive mixture in air. Avoid contact with water or moist air.
【EC Risk Phrase】

R 11 14 36/37/38
【EC Safety Phrase】

S 26 39
【UN (DOT)】

1250
【UN (DOT)】

2172
【UN (DOT)】

2173
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Personal Protection】

Wear appropriate protective gloves, clothing and goggles.
【Respirators】

Wear positive pressure self-contained breathing apparatus (SCBA).
【Respirators】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【Poison Class】

3
Fire Fighting MeasuresBack to Contents
【Flash Point】

-15
【Autoignition】

> 500
【Fire Fighting】

SMALL FIRES: Water spray or fog is preferred; if water not available use dry chemical, carbon dioxide or regular foam. LARGE FIRES: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams. Move containers from fire area if you can do it without risk. Do not move cargo or vehicle if cargo has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide. DO NOT USE WATER!
【Upper exp. limit】

10.4
【Lower exp. limit】

5.5
【Fire Potential】

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
【Fire Potential】

May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.
【Small spills/leaks】

ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. Stop leak if you can do it without risk. SMALL SPILLS: Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal.
Stability and ReactivityBack to Contents
【Stability】

No data.
【Incompatibilities】

Organic compounds can ignite on contact with concentrated peroxides, strongly reduced material such as sulfides, nitrides, and hydrides
【Incompatibilities】

Strong acids - strong bases - strong oxidizing agents - alcohols - chemically active metals (potassium, magnesium, sodium, zinc) - alkalis.
【Stability】

Unstable.
【Disposal Code】

24
【Decomposition】

Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide, silicon oxide.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
【Combustion Products】

Fire will produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

1250
【UN Number】

2172
【UN Number】

2173
【Hazard Class】

3
【Hazard Class】

5.2
【Packing Group】

I
【HS Code】

2931 00 95
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