Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Trimethoxysilane(2487-90-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Trimethoxysilane
Synonyms
Silane, trimethoxy-
CAS
2487-90-3
Formula
C3H10O3Si
Molecular Weight
122.22
EINECS
219-637-2
RTECS
VV6750000
RTECS Class
Primary Irritant
Beilstein/Gmelin
1697990
Beilstein Reference
4-01-00-01266

Physical and Chemical Properties

Appearance
A colorless liquid.
Solubility in water
Decomposes.
Melting Point
-114.8
Boiling Point
81 - 83
Vapor Pressure
76
Density
0.9601 g/cm3
Heat Of Vaporization
36.77 kJ/mol
Usage
Used to prepare a number of organic coupling agents utilized by the plastics industry as adhesion promotors.
Vapor Density
>1
Refractive Index
1.359 (20 C)

First Aid Measures

Ingestion
Seek medical assistance.
Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

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
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 Identification

Ingestion
May cause toxic effects.
Inhalation
Respiratory tract irritation may be seen.
Skin
Contact with substance may cause severe burns.
Eyes
See Skin.
Hazards
May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
UN (DOT)
9269

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Poison Class
5

Fire Fighting Measures

Flash Point
-4
Fire Fighting
Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire Potential
Flammable/combustible material.

Accidental Release Measures

Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard.

Stability and Reactivity

Stability
No data.
Combustion Products
Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
9269
Hazard Class
6.1
Packing Group
I
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