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Chemical Name: Methylcyclopentane
Chemical Formula: C6H12
Common Names: Cyclopentane, methyl-
CAS Number: 96-37-7
Appearance: Colorless liquid
Odor: Mild, gasoline-like scent
Uses: Industrial solvent, fuel additive, intermediate in chemical synthesis
Hazard Classes: Flammable liquid, potential irritant
Hazard Statements: Vapors ignite easily, posing a significant fire risk. High vapor concentrations affect the central nervous system, causing headaches or dizziness. Prolonged or repeated skin contact dries out and cracks the skin. Inhalation irritates nose and throat. In enclosed spaces, vapor buildup may cause drowsiness or suffocation.
Routes of Exposure: Skin, eyes, inhalation
Total Ingredients: Methylcyclopentane at high purity
Impurities: Trace hydrocarbons, potential presence of residual solvents from production processes
Inhalation: Move the affected person to fresh air immediately. Keep comfortable and monitor for persistent cough, confusion, or shortness of breath. Seek medical advice if symptoms persist.
Skin Contact: Remove contaminated clothing. Wash skin thoroughly using soap and plenty of water. Apply skin moisturizer if irritation develops.
Eye Contact: Rinse gently with water, lifting eyelids to clear potential residues. Remove contact lenses if present. Continue for several minutes and seek further help if irritation remains.
Ingestion: Do not induce vomiting. Rinse mouth with water. Get medical attention if feeling unwell or if a significant amount is swallowed.
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide
Unsuitable Media: Do not use water jets directly on the liquid as they can spread burning liquid
Specific Hazards: Highly flammable vapors, vapor/air mixtures can explode. Closed containers may rupture if exposed to heat.
Protective Equipment for Firefighters: Self-contained breathing apparatus and full firefighting gear recommended.
Advice for Firefighters: Cool exposed containers with water spray to reduce fire risk. Isolate area, avoid inhaling combustion products.
Personal Precautions: Avoid breathing vapors. Wear gloves and goggles. Ventilate area.
Environmental Precautions: Prevent liquid from entering sewers, waterways, or soil.
Cleanup Methods: Stop leak if safe. Use non-sparking tools and absorb spill with earth, sand, or inert material. Dispose in accordance with local regulations.
Precautions for Safe Handling: Use only in well-ventilated areas. Ground all containers and transfer equipment. Avoid creating static electricity. Do not breathe vapors or let product contact skin. Keep away from ignition sources such as open flames or hot surfaces.
Storage Conditions: Store in tightly closed containers in a cool, dry, and fireproof location. Separate from incompatible substances including strong oxidizers and acids. Use explosion-proof lighting and equipment.
Occupational Exposure Limits: Regulatory data unavailable or variable by region
Engineering Controls: Local exhaust ventilation to keep vapor exposure below recommended limits.
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, flame-resistant clothing. Respiratory protection in case of inadequate ventilation or high vapor concentration.
Appearance: Clear, volatile liquid
Boiling Point: Close to 72°C
Melting Point: Approximately -141°C
Flash Point: Around -4°C
Vapor Pressure: Elevated at room temperature
Solubility in Water: Poor; more soluble in organic solvents
Density: Lighter than water, causing it to float if spilled
Chemical Stability: Stable in standard conditions if stored correctly
Reactivity: Reacts strongly with oxidizing agents
Decomposition: High heat or fire releases toxic gases like carbon monoxide.
Conditions to Avoid: Heat, sparks, static discharge, flames, and contact with strong oxidizers
Acute Effects: Inhalation may cause light-headedness, drowsiness, or irritation to airways. Significant overexposure affects coordination and alertness. Skin exposure dries and irritates the skin.
Chronic Effects: Repeated or prolonged exposure may damage the liver and kidneys. Increased risk of dermatitis.
Carcinogenicity: Data does not show methylcyclopentane as a known carcinogen
Other Health Effects: No strong evidence of reproductive toxicity
Environmental Toxicity: Short-term exposure is harmful to fish and aquatic life. Persisting or repeated releases harm soil organisms and water habitats.
Persistence and Degradability: Volatile and subject to rapid evaporation, though sunlight breaks it down fairly quickly in the air. Breakdown in soil and water takes longer.
Bioaccumulation: Not known to build up to dangerous levels in animals or plants based on current research.
Appropriate Disposal: Collect and contain all residues using non-sparking tools. Follow all local, national, and international disposal standards for hazardous materials. Professional waste treatment services often provide the safest approach.
Do Not: Pour down drains, into sewers, or let enter natural water sources. Incineration may be appropriate under controlled conditions.
UN Number: UN 1265
Transport Classification: Flammable Liquid
Packing Group: II
Precautions: Use approved containers. Secure loads to prevent tipping or rolling. Comply with national and international transportation rules to lower risk of spills and fire.
Chemical Listing: Included on multiple international chemical inventories
Workplace Safety Legislation: Covered under hazardous substance regulations
Labeling: Clearly mark containers with flammable hazard warning symbols. Update safety information as regulations evolve.
