Product Identification

Product Name

Ethyltriethoxysilane

Synonyms

Ethyltriethoxysilane

CAS

78-07-9

Formula

C8H20O3Si

Molecular Weight

192.33

EINECS

201-080-1

RTECS

VV4205000

RTECS Class

Organometallic; Primary Irritant

Beilstein/Gmelin

1362028

Beilstein Reference

4-04-00-04223

Physical and Chemical Properties

Appearance

Clear liquid. Characteristic odor.

Solubility in water

Insoluble

Boiling Point

158

Vapor Pressure

3.7 (25 C)

Density

0.9207 g/cm3 (0 C)

Partition Coefficient

2.26

Heat Of Vaporization

38.0 kJ/mol

Refractive Index

1.3853 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

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

Eyes

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

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.

Handling

Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation. May be harmful if inhaled.

Skin

May cause skin irritation. May cause contact dermatitis.

Eyes

May cause eye irritation.

EC Risk Phrase

R 10

EC Safety Phrase

S 23 24/25

UN (DOT)

1993

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

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

-

Fire Fighting Measures

Flash Point

29

Autoignition

235

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

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.

Stability and Reactivity

Stability

Stable under normal shipping and handling conditions.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, carbon dioxide, silicon oxide.

Transport Information

UN Number

1993