2-methyl-1-pentene

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

H315 (33.8%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (33.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335 (33.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 68 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Call a doctor.

INHALATION: Remove from contaminated atmosphere. If respiration is labored, administer oxygen. If unconscious, administer artificial respiration.

EYES: Flush with clear tap water for 15 min.

SKIN: Wash with soap and water.

INGESTION: Do not induce vomiting. Physician may remove by cuffed tube lavage. (USCG, 1999)

Fire Extinguishing Agents Not to Be Used: Water may be ineffective.

Fire Extinguishing Agents: Foam, carbon dioxide, dry chemical. (USCG, 1999)

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. 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.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)

Rubber or neoprene gloves, splash goggles and NIOSH approved self-contained breathing apparatus. (USCG, 1999)

2-methyl-1-pentene is a colorless liquid. Flash point -15 °F. Floats on water. Irritating vapor.

Colorless liquid; [CAMEO]

143.8 °F at 760 mmHg (USCG, 1999)

-212.3 °F (USCG, 1999)

-15 °F (est.) (USCG, 1999)

0.685 at 59 °F (USCG, 1999) - Less dense than water; will float

195.0 [mmHg]

572 °F (USCG, 1999)

Boiling point

Composition

Heat of sublimation

Optical coefficient

Phase diagram

Phase equilibrium

Refractive index

Thermal expansion coefficient

Vapor pressure

Vapor-liquid equilibrium

Viscosity

Other Classes -> Aliphatics, Unsaturated

FCS -> FDA Cumulative Estimated Daily Intake (CEDI)

Highly flammable. Insoluble in water.

Hydrocarbons, Aliphatic Unsaturated

Polymerizable Compounds

Highly Flammable

Polymerizable

2-METHYL-1-PENTENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.

Neurotoxin - Acute solvent syndrome

LC50 (rat) = 115,000 mg/m3/4hr

Flammable Liquid