© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Tert-Butylcyclohexane
Chemical Formula: C10H20
Synonyms: 1,1-Dimethylethylcyclohexane
CAS Number: 98-52-2
Manufacturer: Supplier information located on purchase documents
Use: Laboratory chemical, intermediate for organic synthesis
Recommended Restrictions: For research and industrial use only, not for food, drug, or household use
GHS Classification: Flammable liquid (Category 3), Skin and eye irritant (Category 2)
Label Elements: Signal word: Warning, Hazard pictograms: flame, exclamation mark
Hazard Statements: Flammable liquid and vapor. May cause mild eye and skin irritation. May cause respiratory irritation if inhaled at high concentrations.
Precautionary Statements: Keep away from heat, sparks, open flames. Avoid breathing vapors or mists. Wear protective gloves, eye protection, and use adequate ventilation.
Other Hazards: Vapors may form explosive mixtures with air at high concentrations. Static discharge risk near non-grounded equipment.
Component: Tert-Butylcyclohexane
Concentration: >99%
CAS Number: 98-52-2
Impurities: Trace levels of related hydrocarbons possible. Presence of water, peroxides, or other hazardous decomposition products typically negligible if stored under proper conditions.
Inhalation: Move person to fresh air. If breathing becomes difficult, provide oxygen and seek immediate medical attention. Remove source of exposure; affected persons should avoid exertion.
Skin Contact: Remove contaminated clothing and wash skin thoroughly with mild soap and water. For persistent irritation, consult a healthcare professional. Launder clothing before reuse.
Eye Contact: Rinse eyes immediately with water for at least 15 minutes, lifting eyelids. Remove contact lenses if present and continue rinsing. Seek prompt medical care for ongoing irritation.
Ingestion: Do not induce vomiting unless directed by medical personnel. Rinse mouth with water if conscious. Get medical advice if symptoms develop.
Most Important Symptoms: Irritation of eyes, skin, respiratory tract. Dizziness and headache possible if inhaled in high concentrations.
Notes for Medical Personnel: Treat based on symptoms; maintain airway; observe for signs of aspiration and chemical pneumonitis in case of ingestion.
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray recommended. Use water spray only to cool containers, not for extinguishing large liquid fires.
Specific Hazards: Vapors are heavier than air and may travel to ignition sources. Risk of explosion in confined or unventilated areas. Combustion generates hazardous vapors including carbon monoxide, carbon dioxide.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear. Approach from upwind, avoid entering confined spaces where vapors may concentrate.
Firefighting Advice: Remove containers from fire area if safe. Avoid direct water stream; splashing may scatter material.
Personal Precautions: Evacuate unprotected personnel from area. Provide adequate ventilation. Avoid ignition sources; prohibit smoking.
Spill Response: Contain spill with non-combustible absorbent, such as sand or earth. Collect runoff into suitable containers for disposal. Clean residue with soapy water, avoid using solvents.
Environmental Precautions: Prevent product and runoff from entering drains, sewers, or waterways. Notify environmental agencies if contamination is extensive.
Personal Protection: Wear chemical-resistant gloves, safety goggles, and protective clothing to minimize skin and eye exposure.
Handling: Use only in well-ventilated areas, preferably under local exhaust. Ground and bond containers during transferring. Avoid contact with skin, eyes, and clothing. Do not inhale vapors or spray.
Storage: Store in tightly sealed containers, in cool, dry, well-ventilated locations away from heat sources, open flames. Segregate from oxidizers and strong acids. Protect containers from physical damage and direct sunlight.
Special Rules: Keep out of reach of children and unauthorized persons. Store only in original packaging or containers suitable for hydrocarbons.
Engineering Controls: Use explosion-proof ventilation, fume hoods, or vapor extraction systems as needed. Ensure eyewash stations and safety showers are nearby.
Exposure Limits: No OSHA or ACGIH limits specified for tert-butylcyclohexane, but control levels as for similar volatile hydrocarbons apply.
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), splash goggles or face shield, flame-resistant lab coats, closed-toe shoes. In high vapor or spill situations, use approved organic vapor respirators.
Hygiene Measures: Wash hands before eating, drinking, or smoking, and remove contaminated clothing promptly.
Appearance: Colorless liquid
Odor: Mild hydrocarbon aroma
pH: Not applicable
Melting Point: -70°C
Boiling Point: 183°C
Flash Point: 60-65°C (closed cup)
Evaporation Rate: Moderate, varies with temperature and surface area
Flammability: Flammable liquid
Upper/Lower Explosion Limits: UEL 6.2% / LEL 0.8% by volume
Vapor Pressure: 1.35 mmHg at 25°C
Vapor Density: Heavier than air
Relative Density: 0.86 at 20°C
Solubility: Insoluble in water, miscible with most organic solvents
Partition Coefficient (octanol/water): High, logP >3
Autoignition Temperature: 263°C
Decomposition Temperature: No specific data, decomposes with heat and flame
Viscosity: Low
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: No hazardous reactivity under normal use. Vapors react with air to form explosive mixtures.
Conditions to Avoid: Heat, flames, sparks, static discharge, incompatible chemicals.
Incompatible Materials: Strong oxidizers (peroxides, nitric acid), acids, chlorinating agents.
Hazardous Decomposition Products: Burning produces carbon monoxide, carbon dioxide, possibly other hydrocarbons.
Polymerization: Not known to undergo hazardous polymerization.
Routes of Exposure: Inhalation, skin absorption, eye contact, accidental ingestion
Acute Toxicity: Not classified as highly toxic; data limited
Irritation: Liquid and vapor may irritate eyes, skin, and mucous membranes
Sensitization: Not known to cause sensitization
Chronic Effects: Prolonged or repeated exposure may cause skin dryness or cracking. Central nervous system effects possible at high exposure:
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, OSHA
Other Data: Data on reproductive or developmental effects lacking
Toxicity: May be toxic to aquatic life due to low water solubility and high hydrocarbon content. Bioaccumulation may occur in organisms.
Persistence and Degradability: Tends to persist due to resistance to degradation; slower breakdown in soil and water.
Mobility: Low mobility in soil, floats on water.
Bioaccumulative Potential: High, based on structure and partition coefficient. Monitors should limit release to natural waters.
Other Effects: Long-term environmental hazard in spill situations. Avoid disposal in large volumes down the drain.
Disposal Methods: Collect waste in tightly closed, labeled containers. Dispose by incineration at licensed chemical waste facility. Local, regional, and national regulations apply.
Contaminated Packaging: Rinse and recycle empty containers if possible or treat as hazardous waste.
Precautions: Do not pour into drains, watercourses, or on the soil. Coordinate disposal with local environmental authorities.
UN Number: UN 1993
Proper Shipping Name: Flammable liquid, n.o.s. (Tert-Butylcyclohexane mixture)
Transport Hazard Class: 3
Packing Group: III
Labels Required: Flammable liquid
Environmental Hazards: Not regulated as marine pollutant; take care to avoid release en route.
Special Precautions for User: Segregate from oxidizers and corrosives during transport. Keep containers upright, secure from movement or damage.
Inventory Status: Listed on major chemical inventories (TSCA, EINECS/ELINCS, DSL)
Regulatory Information: Subject to OSHA hazardous chemical requirements; not subject to U.S. SARA 313 reporting
Other Regulations: Conforms to REACH Annex II SDS requirements. Not regulated as a controlled substance or explosive.
Labeling: Must carry flammable liquid hazard warnings. Ensure all workplace containers adequately labeled according to national and local laws.
