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Triethoxysilane(998-30-1)

Triethoxysilane(998-30-1)
Product IdentificationBack to Contents
【Product Name】

Triethoxysilane
【Synonyms】

TRIES
【CAS】

998-30-1
【Formula】

C6H16O3Si
【Molecular Weight】

164.31
【EINECS】

213-650-7
【RTECS】

VV6682000
【RTECS Class】

Other
【Beilstein/Gmelin】

1738989
【Beilstein Reference】

4-01-00-01359
Physical and Chemical PropertiesBack to Contents
【Solubility in water】

Insoluble
【Melting Point】

-170
【Boiling Point】

135
【Vapor Pressure】

10 (25 C)
【Density】

0.8753 g/cm3 (20 C)
【Partition Coefficient】

4.7
【Heat Of Vaporization】

35.6 kJ/mol
【Usage】

Is of commercial importance in the silane and silicone industry for the production of organofunctional coupling agents, low-temperature-vulcanizing (ltv) silicone rubbers and elastomers, and specialty monomers.
【Refractive Index】

1.3785 (20 C)
First Aid MeasuresBack to Contents
【Ingestion】

Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
【Inhalation】

If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
【Skin】

Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
【Eyes】

If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.
Handling and StorageBack to Contents
【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 IdentificationBack to Contents
【Ingestion】

See inhalation.
【Inhalation】

Toxicity is similar to silanes. Silanes are moderately irritating to skin, eyes, and mucous membranes. Silane compounds are toxic.
【Skin】

See inhalation.
【Eyes】

See inhalation
【Hazards】

When heated to decomposition, it emits acrid smoke and fumes.
【EC Risk Phrase】

R 10 21/22 26 36/37/38 41
【EC Safety Phrase】

S 16 26 36/37/39 45
【UN (DOT)】

2929
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
【Respirators】

Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Fire Fighting MeasuresBack to Contents
【Flash Point】

26
【Fire Fighting】

(Non-Specific -- Poisonous Liquid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Wear positive pressure breathing apparatus and special protective clothing. Remove and isolate contaminated clothing at the site. Move container from fire area if you can do so without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.(Non-Specific -- Poisonous Liquid, n.o.s.) Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

(Non-Specific -- Poisonous Liquid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Remove and isolate contaminated clothing at the site. Do not touch spilled material; stop leak if you can do so without risk. Use water spray to reduce vapors. Small spills: absorb with sand or other noncombustible absorbent material and place into containers for later disposal. Large spills: dike far ahead of spill for later disposal.
Stability and ReactivityBack to Contents
【Stability】

No data.
Transport InformationBack to Contents
【UN Number】

2929
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