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Chemical Name: 2-Hexene
Chemical Formula: C6H12
Common Synonyms: Hex-2-ene
CAS Number: 592-45-0
Appearance: Clear, colorless liquid with a mild, hydrocarbon odor
Odor Threshold: Noticeable at relatively low levels due to volatility
Uses: Key intermediate in organic synthesis, applied in labs and certain industrial manufacturing processes or research settings
Physical Hazards: Highly flammable liquid and vapor
Health Hazards: Exposure may cause irritation of eyes, skin, and respiratory tract; inhalation at higher doses can lead to dizziness, headache, and narcotic effects
Environmental Hazards: Highly volatile which raises the risk for air contamination and potential fire hazards, also reports point to acute aquatic toxicity in local water sources when spilled
Pictogram: Flame and exclamation mark signal potential for immediate fire and acute health risks
Signal Word: Danger
Substance: 2-Hexene
Purity: Often available in commercial grades above 98%
Impurities: May contain trace levels of other alkenes or saturated hydrocarbons depending on synthesis route
Inhalation: Move exposed individual to fresh air quickly; keep airway clear and watch for signs of respiratory distress; provide respiration if needed
Skin Contact: Remove contaminated clothing; wash exposed skin with soap and water thoroughly
Eye Contact: Rinse eyes carefully with plenty of water, holding eyelids apart; seek medical help if discomfort continues
Ingestion: Rinse mouth; do not induce vomiting; seek immediate medical attention as aspiration into lungs could cause chemical pneumonitis
Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, or foam; water spray may help cool exposed containers but might not extinguish the blaze
Special Hazards: Vapors form explosive mixtures with air, especially in confined areas; container rupture possible if exposed to fire
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective suit; avoid inhaling fumes
Personal Protection: Keep ignition sources away; ventilate area; wear gloves, eye protection, and suitable respirator
Spill Response: Contain spillage using inert absorbent material like sand or vermiculite; prevent release into drains or waterways
Cleanup: Collect absorbed material for safe disposal; ventilate affected area to eliminate vapor
Handling: Avoid breathing vapor and skin contact; open containers in ventilated spaces; take precautions against static discharge
Storage: Store in tightly closed containers, in a cool, well-ventilated place away from heat and ignition sources
Separation: Do not store near oxidizing agents, acids, or materials that can react violently with hydrocarbons
Engineering Controls: Work in well-ventilated spaces; use fume hood if possible
Personal Protective Equipment: Use chemical-resistant gloves, splash goggles, lab coat; respiratory protection if atmospheric levels exceed safe limits
Hygiene Measures: Wash hands after handling, avoid eating or drinking while in contact with the chemical
Biological Monitoring: None commonly available or required in most applications, although regular air monitoring is recommended where used regularly
Physical State: Liquid at room temperature
Color: Colorless
Odor: Mild, hydrocarbon odor
Molecular Weight: 84.16 g/mol
Boiling Point: ~63°C - 65°C
Melting Point: ~ -139°C
Flash Point: Below room temperature, fluctuating with atmospheric conditions
Vapor Pressure: High at room temperature
Solubility: Insoluble in water
Density: Around 0.67 g/cm³ at 20°C
Chemical Stability: Typically stable under recommended handling and storage; susceptible to polymerization if contaminated
Conditions to Avoid: Exposure to heat, sparks, or flame; static electricity or contact with strong oxidizers
Incompatible Materials: Strong oxidizing agents, acids, or sources of free radicals
Hazardous Decomposition: Carbon monoxide, carbon dioxide, and reactive hydrocarbons may form under fire or decomposition
Acute Effects: Inhalation can cause dizziness, headache, and respiratory discomfort; skin or eye irritation possible
Chronic Effects: Repeated contact may defat skin or increase sensitivity; long-term inhalation at high concentrations could threaten central nervous system function
Sensitization: No data points to allergic skin or respiratory responses in humans yet published
Carcinogenicity: No substantial evidence currently links 2-Hexene with cancer; lacks classification from leading health agencies
Environmental Impact: High volatility increases risk of atmospheric release; hydrocarbon spills have shown potential for acute fish and invertebrate toxicity
Persistence and Degradability: Will break down in the environment but vapor release could contribute to local smog formation under sunlight
Mobility: Floats on water, unlikely to dissolve and disperse; vapor can travel and ignite far from the release site
Disposal Method: Incinerate in approved facility; do not dump down drains or sewers
Precautions: Avoid contact with water sources or soil during disposal; ensure local guidelines are followed strictly
Empty Containers: May retain residues and vapor; handle as hazardous waste even when “empty”
UN Number: Classified as a hazardous material by road, rail, air, and sea for flammable liquids
Hazard Class: Flammable Liquid
Packing Group: Mid-level risk based on flash point and volatility, so typically group II
Transport Precautions: Ship in tightly closed, upright containers away from heat and sunlight; ensure transport vehicles stay grounded to avoid static buildup
GHS Classification: Flammable Liquid, Acute Toxicity Category 3, Skin Irritant Category 2
Reporting Requirements: Subject to notification rules under various workplace and environmental health safety standards
Labeling: Must display hazard symbols and signal words pertinent to serious fire, chemical, and environmental risks
Workplace Control: Employers must provide access to data sheets, train workers, and track inventories of high-volume users
