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Product Name: Cyclohexane
Chemical Formula: C6H12
CAS Number: 110-82-7
Synonyms: Hexahydrobenzene, Hexamethylene Cyclohexan, Tetrahydrobenzene
Manufacturer: Typically available from chemical producers and bulk suppliers
Recommended Use: Solvent, raw material for plastics, resins, and chemical synthesis
Contact Information: Access Safety Officer or Supplier Emergency Line
Hazard Class: Flammable liquids (Category 2)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor, may cause drowsiness or dizziness, harmful to aquatic life with long-lasting effects
Pictograms: Flame, Exclamation mark, Environmental hazard symbol
Precautionary Statements: Keep away from ignition sources, use protective gear to avoid vapors or skin contact, contain spills to prevent entry into water systems
Chemical Name: Cyclohexane
Purity: Typically >99%
Impurities: May include traces of benzene, methylcyclopentane, and other hydrocarbons depending on grade
Additives: None in standard lab or industrial grade
Inhalation: Move to fresh air, keep airway open, monitor for breathing difficulty, seek medical help for symptoms like dizziness, headache, or lack of coordination
Skin Contact: Remove contaminated clothes, wash with soap and water, monitor for rash or irritation, get attention if symptoms persist
Eye Contact: Flush with gentle but steady water for at least 15 minutes, remove contact lenses, seek medical attention if irritation continues
Ingestion: Rinse mouth with water, do not induce vomiting, get immediate medical care; risk of aspiration into the lungs; monitor for cough or choking
Suitable Extinguishing Media: Use foam, dry chemical powder, or carbon dioxide; avoid water jets as they may spread fire
Specific Hazards: Vapors form explosive mixtures with air, containers can burst if heated
Protective Equipment: Use full firefighting gear, self-contained breathing apparatus
Special Precautions: Remove sources of ignition, evacuate area, cool containers with water spray if exposed to heat
Personal Protection: Use gloves, goggles, and rubber boots; ensure adequate ventilation or wear respirators in confined spots
Environmental Precautions: Prevent from entering drains, soil, or natural water bodies; notify environmental authorities if large spills occur
Containment: Use inert absorbents like sand or earth; dike area to restrict flow
Cleanup: Collect material using non-sparking tools, store waste in closed containers for proper disposal
Safe Handling: Ground and bond containers, work in well-ventilated areas, avoid static electricity, keep away from sparks and hot surfaces
Hygiene: Wash hands after handling, keep food and drink out of work area
Storage Conditions: Store in tightly closed containers, away from oxidizers, heat, direct sunlight, acids, and bases; use explosion-proof equipment
Incompatible Materials: Strong oxidizers, nitric acid, strong acids and bases
Occupational Exposure Limits: OSHA PEL: 300 ppm (TWA), ACGIH TLV: 100 ppm (TWA)
Engineering Controls: Use local exhaust or general ventilation to keep air levels below exposure limits
Respiratory Protection: Use approved respirators if ventilation cannot control exposure
Eye Protection: Wear safety goggles or full-face shield
Skin Protection: Use resistant gloves (nitrile or neoprene), long sleeves and pants
Other: Emergency eyewash stations and safety showers always available
Appearance: Clear, colorless liquid
Odor: Mild, sweet, gasoline-like
Boiling Point: 80.7°C (177.3°F)
Melting Point: 6.47°C (43.6°F)
Density: 0.779 g/cm³ at 20°C
Solubility: Insoluble in water, soluble in alcohol, ether, acetone
Vapor Pressure: 97 mmHg at 25°C
Flash Point: -18°C (0°F)
Evaporation Rate: 2.9 (butyl acetate = 1)
Vapor Density: 2.99 (air = 1)
Autoignition Temperature: 245°C (473°F)
Chemical Stability: Stable in closed containers under normal conditions
Hazardous Reactions: Reacts with strong oxidizers, forms explosive mixtures with air
Thermal Decomposition: Emits toxic fumes such as CO, CO2, and hydrocarbons
Incompatible Materials: See Handling and Storage
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Effects: May cause skin and respiratory tract irritation, drowsiness, headache, nausea, unconsciousness with heavy exposure
Chronic Effects: Possible liver, kidney, or CNS effects after repeated or prolonged exposure
Carcinogenic Status: Not classifiable by IARC; not listed as human carcinogen by NTP or OSHA
LD50 Oral (rat): 12705 mg/kg
LD50 Dermal (rabbit): >2000 mg/kg
Aquatic Toxicity: Harmful to aquatic organisms, can cause long-term adverse effects in aquatic environments
Persistence and Degradability: Not readily biodegradable; can persist in soil and water for weeks
Bioaccumulative Potential: May bioaccumulate in aquatic organisms
Mobility in Soil: Moves through soil due to low adsorption and high volatility
Other Effects: Potential to vaporize and pollute air, forms photooxidants contributing to smog
Waste Disposal: Handle as hazardous waste; incinerate in approved facilities or dispose through certified waste companies
Contaminated Packaging: Rinse and dispose of empty drums/containers as hazardous waste
Special Precautions: Do not allow product to reach groundwater or sewers; comply with local, regional, national, and international regulations
UN Number: 1145
UN Proper Shipping Name: Cyclohexane
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: II
Labeling Requirements: Flammable liquid placard
Environmental Hazards: Marine pollutant; avoid water transportation spills
Special Transport Precautions: Ship in approved containers, avoid heat sources and impacts during transit
Inventory Listings: Listed in TSCA, EINECS, DSL, AICS, and other international inventories
Label Elements: Flammable liquid, health hazard, environmental hazard
Regulations: Subject to OSHA’s Hazard Communication Standard; covered under CERCLA, EPCRA SARA Title III, and air and water toxics lists in some jurisdictions
Additional Requirements: Local and national safety regulations may set lower exposure limits or require stricter controls for bulk users or disposal
