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  • Propylene trimer
Formula(CH3CH=CH2)3 (C9H18)
Description A colorless liquid.
Uses Used to make other chemicals and as a lubricating oil additive.

Registry Numbers and Inventories.
UN (DOT)2057

Formula mass126.24
Melting point, °C-93.5
Boiling point, °C156
Vapor density (air=1)4.35
Density1.022 g/cm3 (20 °C)

Hazards and Protection.
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.
Protection Wear appropriate protective gloves, clothing and goggles.
Respirators Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability No data.
Incompatibilities May react vigorously with strong oxidizing agents May react exothermically with reducing agents to release hydrogen gas.

Fire fighting Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide.
Fire potential HIGHLY FLAMMABLE.
Hazards 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. Substance may be transported hot.
Combustion products Flammable/toxic gases may be released.

Exposure effectsThe toxological properties of this substance have not been fully investigated.
Vapors may cause dizziness or suffocation. May cause irritation or burns.
May cause irritation or burns.
First aid 
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes. Wash skin with soap and water. Flush with running water for at least 20 minutes

UN number2057
Response guide
Hazard class3
Packing GroupII; III
USCG Compatatibility Group 30 Olefins 

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