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4-Methylcyclohexene

4-Methylcyclohexene

FormulaC7H12 (C7H12)
Description Clear, colorless liquid.

Registry Numbers and Inventories.
CAS591-47-9
EC (EINECS/ELINCS)209-715-4
UN (DOT)3295
Beilstein ref.4-05-00-00248
Listed on the Toxic Substancs Control Act (TSCA).
Listed on Canadian Domestic Substances List (DSL).
Listed on Australian Inventory of Chemical Substances (AICS).

Properties.
Formula mass96.17
Melting point, °C-115.5
Boiling point, °C103
Density0.7991 g/cm3 (20°C)
Solubility in waterInsoluble
Refractive index1.4414 (20°C)
Heat of vaporization26300 J/mol (25 °C)

Hazards and Protection.
Storage Store in a cool, dry place. Keep container closed when not in use. Flammables-area.
Handling Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection Wear appropriate protective gloves, clothing and goggles.
Respirators Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment.
Stability Stable under normal temperatures and pressures.
Incompatibilities Oxidizing agents.
Decomposition Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C-1
Fire fighting Use of water spray when fighting fire may be inefficient. Small Fires: Dry chemical, CO2, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam. Use water spray or fog; do not use straight streams.
Fire potential HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
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.
Combustion products Fire may produce irritating, corrosive and/or toxic gases.
 Flammability3 
 Reactivity0 
  Special- 

Health.
Exposure effectsThe toxological properties of this substance have not been fully investigated.
Inhalation
Vapors may cause dizziness or suffocation. May cause irritation or burns.
Skin
May cause irritation or burns.
First aid 
Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
Inhalation
Remove from exposure to fresh air immediately.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

UN number3295
Response guide
Hazard class3
Packing GroupI; II; III
USCG CHRIS Code HFN 
USCG Compatatibility Group 30 Olefins 

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