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
Home > 1,1,3,5,5-Pentaphenyl-1,3,5-trimethyltrisiloxane > 1,1,3,5,5-Pentaphenyl-1,3,5-trimethyltrisiloxane(3390-61-2)

1,1,3,5,5-Pentaphenyl-1,3,5-trimethyltrisiloxane(3390-61-2)

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

Product Identification

Product Name
1,1,3,5,5-Pentaphenyl-1,3,5-trimethyltrisiloxane
Synonyms
Methylbis[(methyldi(phenyl)silyl)oxy]phenylsilane
Trisiloxane, 1,3,5-trimethyl-1,1,3,5,5-pentaphenyl-
CAS
3390-61-2
Formula
C33H34O2Si3
Molecular Weight
546.88
EINECS
222-222-9
Beilstein/Gmelin
2957161

Physical and Chemical Properties

Appearance
Clear viscous liquid.
Melting Point
-25
Boiling Point
225 (0.5 torr)
Density
1.093 g/cm3
Refractive Index
1.5796

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

Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation
May cause respiratory tract irritation. May be harmful if inhaled.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Eyes
Causes eye irritation.

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.

Fire Fighting Measures

Flash Point
101
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.

Stability and Reactivity

Incompatibilities
Oxidizing materials.
Stability
Stable under normal shipping and handling conditions.
Decomposition
Carbon monoxide, carbon dioxide, silicon oxide, formaldehyde.
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