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Product Name: Isobutylcyclopentane
Chemical Name: 1-Isobutylcyclopentane
Synonyms: Cyclopentane, isobutyl-
CAS Number: 5292-48-0
Recommended Use: Industrial solvent, intermediate in organic synthesis
Supplier: Chemical manufacturer, distributor, or importer (specific contact info required here)
Emergency Contact: National emergency number and poison control center phone
GHS Classification: Flammable liquid (Category 2), skin irritant (Category 2), specific target organ toxicity (single exposure, Category 3)
Label Elements: Warning pictogram (flame, exclamation mark)
Hazard Statements: Highly flammable liquid and vapor. May cause skin and eye irritation. May cause drowsiness or dizziness.
Precautionary Statements: Keep away from open flames and sources of ignition. Avoid breathing vapors. Use personal protective equipment as required.
Potential Health Effects: Inhalation can cause headache, dizziness, and respiratory irritation. Skin contact leads to dryness or cracking. Eye exposure can result in irritation and redness.
Chemical: Isobutylcyclopentane
Concentration: ≥98%
Impurities: <1% unspecified hydrocarbon contaminants
Molecular Formula: C9H18
Molecular Weight: 126.24 g/mol
Inhalation: Move exposed person to fresh air right away. If breathing stops, give artificial respiration and seek emergency medical help.
Skin Contact: Wash skin thoroughly with mild soap and cool water for at least 15 minutes. Remove contaminated clothing and wash before reuse.
Eye Contact: Rinse eyes gently for several minutes with water. If irritation persists, get medical attention.
Ingestion: Do not induce vomiting. Rinse mouth with water and consult a physician immediately.
Most Important Symptoms: Drowsiness, dizziness, skin dryness, persistent coughing, headache.
Notes for Physician: Treat symptomatically and monitor respiratory and cardiac function.
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, spray mist.
Unsuitable Extinguishing Media: High-pressure water streams can spread the liquid.
Special Hazards: Vapors are heavier than air and can travel along the floor to a distant ignition source. Combustion releases carbon monoxide, carbon dioxide, possibly irritating smoke or fumes.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear.
Firefighting Instructions: Cool containers exposed to heat with water spray to prevent pressure build-up and possible explosion.
Personal Precautions: Evacuate area of unprotected personnel. Ventilate area. Avoid inhalation of vapors, skin, and eye contact.
Protective Equipment: Use respirator, goggles or face shield, suitable gloves, and protective clothing.
Environmental Precautions: Prevent entry into drains, surface water, or soil. Notify relevant authorities if large spill occurs.
Cleanup Methods: Stop leak if safe to do so. Absorb with inert material (sand, earth, or vermiculite). Collect in suitable, labeled containers for disposal. Wash area with plenty of water after removal.
Safe Handling: Use with adequate ventilation. Ground and bond all equipment when transferring liquid. Keep away from heat, open flames, sparks, and static electricity. Do not eat, drink, or smoke during use. Avoid prolonged skin contact and inhalation of vapors.
Storage Conditions: Store in tightly closed, well-ventilated containers. Keep cool and dry, away from sources of ignition and incompatible substances like oxidizers or acids. Store in original container labeled properly. Restrict access to authorized personnel.
Exposure Limits: No established OSHA or ACGIH exposure limits for isobutylcyclopentane. Use workplace hygiene measures.
Engineering Controls: Use local exhaust ventilation at emission points. Provide eyewash stations and safety showers.
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, flame-resistant lab coat or apron. For splash risk, use face shield.
Respiratory Protection: If exposure threshold is exceeded or ventilation inadequate, use approved organic vapor respirator.
Hygiene Measures: Wash hands, forearms, and face thoroughly after handling. Do not reuse contaminated clothing until cleaned.
Appearance: Colorless liquid
Odor: Mild, characteristic hydrocarbon scent
Odor Threshold: Not determined
pH: Not applicable
Melting Point/Freezing Point: -90°C (approximate)
Boiling Point/Range: 132-134°C
Flash Point: 13°C (closed cup)
Evaporation Rate: Not determined
Flammability: Highly flammable liquid and vapor
Upper/Lower Flammability Limits: Lower: 1%; Upper: 7% (estimated)
Vapor Pressure: ~15 mm Hg at 25°C
Vapor Density: >1 (air=1)
Relative Density: 0.75–0.77 g/cm³ at 20°C
Solubility: Insoluble in water
Partition Coefficient (n-octanol/water): ~4 (estimated)
Auto-ignition Temperature: 245°C
Decomposition Temperature: Not determined
Viscosity: Not measured
Chemical Stability: Stable under recommended storage and handling conditions.
Possible Hazardous Reactions: May react vigorously with oxidizers or strong acids. Vapor may form explosive mixture with air.
Conditions to Avoid: Heat, sparks, open flames, sources of static discharge.
Incompatible Materials: Strong oxidizers, acids, halogens.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, various hydrocarbons if combusted.
Exposure Routes: Inhalation, skin contact, eye contact, ingestion.
Acute Toxicity: Low toxicity by skin route, moderate through inhalation; irritation possible with direct contact.
Skin Corrosion/Irritation: May cause redness, dryness, and cracking.
Eye Damage/Irritation: Short contact can cause transient pain and redness.
Respiratory Sensitization: Vapor can induce headache, dizziness, and nausea.
Chronic Effects: Prolonged or repeated exposure can de-fat the skin; central nervous system depression might follow sustained high exposures.
Carcinogenicity/Mutagenicity: No evidence found in available animal or human studies.
Reproductive Toxicity: No conclusive data available.
Ecotoxicity: Harm to aquatic environments cannot be ruled out. May cause drowsiness or narcotic effects in aquatic life.
Persistence and Degradability: Biodegradation expected to occur slowly in soil and water. Low water solubility, so may float and create film.
Bioaccumulative Potential: High partition coefficient suggests material can accumulate in aquatic organisms.
Mobility in Soil: Low mobility due to hydrophobic nature; likely to adsorb to soil particles.
Other Adverse Effects: Discharge to the environment should be prevented; report large spills as required by local laws.
Disposal Methods: Incineration in approved facility using suitable flue gas scrubber for combustion byproducts. Landfills not recommended due to flammability and persistence.
Container Disposal: Empty containers retain product residue. Do not cut, weld, or reuse containers unless thoroughly decontaminated. Crush, puncture, or otherwise render unusable before final disposal.
Special Precautions: Comply with all state, local, federal, and national environmental regulations regarding disposal.
UN Number: UN1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (Isobutylcyclopentane)
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: II
Hazard Label: Flammable liquid
Special Precautions for Transport: Keep container tightly closed and upright. Trailers must be properly grounded.
Transport in Bulk: Subject to international agreements such as IMDG, ADR, IATA
Environmental Hazards: Not classified as a marine pollutant but avoid bulk discharges.
U.S. Federal Regulations: TSCA listed. Subject to OSHA workplace hazard criteria. SARA Title III applies for storage thresholds.
State Regulations: Listed in state-specific right-to-know lists (check with local authority).
International Regulations: In compliance with EU REACH, Canada DSL/NDSL, and Australian AICS.
Labeling Requirements: GHS-compliant label, hazard and precautionary statements required.
Restrictions: Restricted for professional use only, not for consumer sale in many jurisdictions.
