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2-Methyl-2-butene

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[Flash Point]

-7
[Fire Fighting]

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid. Containers may explode in the heat of a fire. Will be easily ignited by heat, sparks or flame. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
[Upper exp. limit]

9.6
[Lower exp. limit]

1.4
[Fire Potential]

HIGHLY FLAMMABLE.
[Ingestion]

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
[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 immediately.
[Storage]

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
[Handling]

Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
[Inhalation]

Vapors may cause dizziness or suffocation.
[Skin]

May cause skin irritation.
[Eyes]

May cause eye irritation.
[Ingestion]

May cause irritation of the digestive tract.
[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.
[UN (DOT)]

2460
[Personal Protection]

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. 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]

Mild central nervous system depression or excitation may occur after ingestion or vapor inhalation. CNS effects can occur secondary to hydrocarbon pneumonitis and hypoxia, or from additives and contaminants (aniline, heavy metals, camphor, or pesticides). Some hydrocarbons are simple asphyxiants (e.G., Methane, ethane, propane gasses) which can produce CNS effects secondary to hypoxia. In a prospective study in Toronto, major congenital malformations were noted in 13 of 125 fetuses of mothers exposed to organic solvents during pregnancy.
[Appearance]

A clear colorless volatile liquid with a petroleum-like odor.
[Solubility in water]

Insoluble
[Melting Point]

-124
[Boiling Point]

39
[Vapor Pressure]

468 (25 C)
[Density]

0.6623 g/cm3 (20 C)
[Partition Coefficient]

2.92
[Heat Of Vaporization]

34.6 kJ/mol
[Heat Of Combustion]

-1484 kJ/mol
[Usage]

Principally chemical intermediate for isoprene, additive in high octane fuel mfr, chemical intermediate for the pharmaceutical solvent, tertiary pentyl alcohol.
[Vapor Density]

2.4
[Refractive Index]

1.3874 (20 C)
[Product Name]

beta-Isoamylene
[Synonyms]

2-Methylbut-2-ene
Amylene
b-Isoamylene
Trimethylethylene
[CAS]

"CASEN_513-35-9.htm">513-35-9
[Formula]

C5H10
[Molecular Weight]

70.13
[EINECS]

208-156-3
[RTECS]

EM7650000
[Merck]

12,649
[Beilstein/Gmelin]

1361353
[Beilstein Reference]

4-01-00-00820
[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. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces.
[Incompatibilities]

Oxidizing agents
[Stability]

Stable under normal shipping and handling conditions.
[Decomposition]

Irritating and toxic fumes and gases.
[Combustion Products]

Fire may produce irritating, corrosive and/or toxic gases.
[UN Number]

2460
[Hazard Class]

3
[Packing Group]

II