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Chemical name: Methyl Cyclohexane
Chemical formula: C7H14
Common names: Cyclohexylmethane
CAS number: 108-87-2
Description: Colorless, flammable liquid with an aromatic odor, often found in labs and industrial sites where solvents and chemical intermediates come into play.
GHS classification: Flammable liquid (Category 2), Aspiration hazard (Category 1), Acute toxicity, skin irritation, and environmental hazard features
Label elements: Flame and health hazard pictograms
Physical hazards: Easily ignites at room temperature. Vapors can form explosive mixtures with air, which can lurk in unexpected places.
Health hazards: Inhalation of vapors brings on drowsiness, dizziness, or in high concentrations, even central nervous system depression. Direct skin contact dries and irritates the skin. Swallowing poses a serious risk of chemical pneumonia.
Environmental hazards: Toxic to aquatic life. Spills and leaks tend to find their way into water systems, threatening fish and plant life.
Component: Methyl Cyclohexane
Concentration: Typically above 99 percent in industrial or laboratory settings
Impurities: Trace other hydrocarbons may show up, but content remains very low in pure chemical stock
Inhalation: Move the person to fresh air, keep them calm and warm. If breathing issues appear, call for emergency medical support immediately.
Skin contact: Flush with plenty of water and remove contaminated clothes right away. Use soap to clear off residues.
Eye contact: Rinse eyes gently with water for minutes. If irritation holds, medical attention becomes crucial.
Ingestion: Avoid forcing vomiting. Seek medical care fast; aspiration lets the chemical enter airways and poses serious risk.
Suitable extinguishers: Use foam, dry chemical, or carbon dioxide. Dousing with water often risks spreading the burning material.
Hazards from combustion: Fire produces noxious fumes, mainly carbon monoxide and carbon dioxide. Vapors present a flashback risk.
Protective actions: Wear breathing apparatus and full protective gear. Evacuate non-essential personnel quickly. Cooling containers may prevent explosions or violent ruptures.
Personal precautions: Evacuate the area, especially if vapors reach eye or nose level. Wear gloves, goggles, and breathing masks.
Methods for cleanup: Contain leaks using sand or inert absorbents. Scoop up on-site and send off to specialist waste handlers. Open windows and doors to help clear the air.
Environmental precautions: Prevent the spill from reaching drains, rivers, and groundwater. Document any release above regulatory limits.
Safe handling: Work inside well-ventilated spaces or use fume hoods. Static electricity causes real threats here, so grounding and bonding containers matters. Never smoke or start open flames nearby. Store only what you need on hand, in tightly closed containers.
Storage conditions: Keep in cool, dry spots away from oxidizers and acids. Use explosion-proof refrigerators if cold storage is needed. Containers demand labeling to easily spot both hazard and identity.
Ventilation: Use exhaust fans or local ventilation systems to keep vapor levels down.
Eye protection: Goggles or face shields block splashes.
Skin protection: Butyl rubber or nitrile gloves do better than latex. Long sleeves keep arms safe.
Respiratory protection: Vapor masks recommended during big spills, leaks, or poor ventilation.
Occupational exposure limits: Occupational Safety and Health Administration (OSHA) and American Conference of Governmental Industrial Hygienists (ACGIH) usually set workplace time-weighted averages at 400 ppm. Real safety involves staying well below that line to avoid health effects.
Appearance: Clear, colorless, mobile liquid
Odor: Mild, sweet petroleum-like smell
Melting point: Around -126°C
Boiling point: About 101°C
Vapor pressure: 40 mmHg at room temperature
Density: About 0.77 g/cm³
Solubility: Hardly mixes with water; soluble in organic solvents
Flash point: -3°C (closed cup), so even a small spark can set it off
Chemical stability: Stable under most dry, usual storage settings
Reactivity: Contact with strong oxidizing agents, acids, or bromine leads to violent reactions
Conditions to avoid: Keep away from heat, sparks, sun, or open flames
Hazardous decomposition: Produces carbon monoxide and other toxic gases if burned or heated excessively
Exposure effects: Repeated or high-exposure brings headaches, dizziness, and drowsiness. In serious cases, central nervous system depression shows up.
Skin contact: Prolonged contact dries out skin or causes dermatitis.
Eyes: Liquid or vapor irritates eyes and causes redness or pain.
Inhalation: Can cause unconsciousness when vapors rise above safe limits.
Ingestion: Even swallowing small amounts risks chemical pneumonia, chest pain, and sometimes life-threatening lung complications.
Chronic exposure: Animal studies suggest possible liver and kidney impacts with long-term misuse; human health studies remain limited.
Acute aquatic toxicity: Proven toxic to fish and aquatic insects in lab settings.
Persistence and degradability: Breaks down slowly; volatile enough to leave surface water for the air but still leaves residues.
Bioaccumulation: May build up in aquatic organisms.
Mobility in soil: Moves through porous soils to groundwater if spilled.
Waste management: Collect all used or spilled product for disposal through state-licensed hazardous waste companies.
Disposal methods: Incineration in permitted facilities proves safest. Never dump down drains or into local sewers.
Packaging: Triple-rinse and offer used drums to specialized recyclers.
UN number: UN 2296
Transport hazard class: 3 (Flammable liquid)
Packing group: II
Shipping mode restrictions: Strict no-go for air cargo without full declaration and specialized containers. Over-the-road transport must meet Department of Transportation rules for dangerous goods labels, secure containers, and driver training.
GHS: Full hazard pictograms, risk, and safety phrases.
TSCA: Listed for manufacture and use in the United States.
OSHA: Recognizes vapor and ingestion exposure dangers.
SARA Title III: Subject to reporting as a hazardous chemical above threshold levels.
REACH: Registered in the European system for imports, exports, and uses.
Labeling rules: Clear warnings for flammable and toxic properties must always appear on any container at any worksite.
