Product Identification

Product Name

Triethoxyoctylsilane

Synonyms

A 137
Dynasylan-OCTEO
Octyltriethoxysilane
Prosil-9202
Prosil-9234
Triethoxyoctylsilane

CAS

2943-75-1

Formula

C14H32O3Si

Molecular Weight

276.5

EINECS

220-941-2

RTECS

VV6695500

RTECS Class

Other

Beilstein/Gmelin

2325287

EC Class

irritant

Physical and Chemical Properties

Appearance

Colorless liquid. Alcohol-like odor.

Solubility in water

Insoluble

Melting Point

-40

Boiling Point

265

Vapor Pressure

0.75 (20 C)

Density

0.8515 g/cm3 (20 C)

Usage

Coupling agent.

Refractive Index

1.42 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

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

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

Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Inhalation

Causes respiratory tract irritation. May be harmful if inhaled.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation. Causes redness and pain. Several cases have been reported where poisoning caused swelling of the eyelids, delerium, blurred vision and hallucinations.

Ingestion

May cause irritation of the digestive tract. May be harmful if swallowed.

EC Risk Phrase

R 36/38

EC Safety Phrase

S 26 36

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.

Exposure Effects

Prolonged or repeated skin contact may cause defatting and dermatitis.

Fire Fighting Measures

Flash Point

109

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use foam, dry chemical, or carbon dioxide.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal shipping and handling conditions.

Incompatibilities

Water, oxidizing agents, acids, bases, moisture.

Decomposition

Carbon monoxide, carbon dioxide, silicon oxide.

Transport Information

HS Code

2931 00 95