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Name: 3,3-Dimethylheptane
Chemical Formula: C9H20
Common Uses: Laboratory research, chemical synthesis
Structure: Branched hydrocarbon, part of the alkane family
Appearance: Clear, colorless liquid with a faint hydrocarbon odor
CAS Number: 584-94-1
Odor Threshold: Low, due to volatile organic characteristics
Classification: Flammable liquid, Category 2
Main Hazards: Fire risk, inhalation hazard, potential skin and eye irritation
Health Effects: Short-term exposure by inhalation can cause headaches, dizziness, and drowsiness; prolonged skin contact may lead to dryness or cracking
Environmental Impact: Harmful to aquatic life, highly volatile
Signal Word: Danger, due to flammability and potential health effects
Chemical Name: 3,3-Dimethylheptane
Purity: Typically above 98% in research settings
Other Components: Presence of other isomers or impurities from synthesis, typically much less than 2%
Type: Single-component hydrocarbon, without additives or stabilizers
Inhalation: Move person to fresh air, monitor breathing, seek medical help if symptoms persist
Skin Contact: Immediately wash with soap and water, remove contaminated clothing
Eye Contact: Rinse cautiously with water for several minutes
Ingestion: Rinse mouth, avoid inducing vomiting, seek medical attention if symptoms appear
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide
Unsuitable Extinguishing Media: Do not use water jet as it may spread the fire
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, potentially other toxic gases
Protection for Firefighters: Use full protective gear and self-contained breathing apparatus
Fire Hazards: Produces flammable vapors that can form explosive mixtures with air
Personal Precautions: Evacuate area, ensure proper ventilation, use personal protective equipment
Environmental Precautions: Prevent entry into soil, drains, and waterways
Cleanup Methods: Absorb with inert material like sand, collect in closed containers for disposal, decontaminate area with soap and water
Handling: Keep away from open flames and hot surfaces, avoid breathing vapors
General Precautions: Ground and bond containers during transfer
Storage Requirements: Store in a cool, well-ventilated area, keep tightly closed in original container
Incompatibility: Strong oxidizing agents and acids, sources of ignition
Engineering Controls: Use fume hoods or local exhaust ventilation to prevent accumulation of vapors
Personal Protective Equipment: Chemical-resistant gloves, splash-proof goggles, lab coat
Respiratory Protection: Use approved respirators in poorly ventilated areas
Hygiene Measures: Do not eat or drink near handling area, wash hands thoroughly after use
Molecular Weight: 128.26 g/mol
Boiling Point: Between 140–145°C
Melting Point: Below 0°C
Density: About 0.74 g/cm³ at 20°C
Vapor Pressure: Moderate, increases with temperature
Solubility: Insoluble in water, soluble in organic solvents
Appearance: Clear, colorless liquid
Odor: Mild, hydrocarbon-like smell
Stability: Stable under recommended storage conditions
Reactivity: Can react with strong oxidizers, may form peroxides if stored improperly
Hazardous Reactions: Rapid combustion in presence of flame or spark
Decomposition Products: Carbon monoxide, carbon dioxide, trace hydrocarbons
Acute Toxicity: Low to moderate acute toxicity via inhalation and ingestion
Irritation: Prolonged skin contact causes dryness, repeated exposure increases risk of dermatitis
Inhalation Effects: Dizziness, nausea, headache
Long-Term Effects: Chronic exposure risks not fully established, similar alkanes suggest possible central nervous system effects with sustained exposure
Sensitization: Not reported
Aquatic Toxicity: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environments
Mobility: High volatility, can evaporate quickly into air; insoluble in water so may float on surfaces
Persistence: Relatively persistent in low-oxygen conditions, breaks down slowly in soil and water
Bioaccumulation: Not readily bioaccumulated, but hydrocarbon buildup in ecosystems remains a research concern
Waste Disposal: Treat as hazardous waste; incineration in chemical incinerator with afterburner and scrubber recommended
Container Disposal: Rinse containers, dispose of per regulatory guidelines
Spillage: Offer material to licensed disposal companies, avoid release to environment whenever possible
UN Number: UN1993
Proper Shipping Name: Flammable liquid, n.o.s. (contains 3,3-Dimethylheptane)
Hazard Class: 3 – Flammable liquid
Packing Group: III
Transport Concerns: Keep containers upright and secure, segregate from oxidizers and other incompatible substances
Label Requirements: Flammable liquid, handle with care, wear personal protection
National Inventory Status: Listed in several chemical inventories, including TSCA (US) and EINECS (EU)
Workplace Limits: No established OSHA or ACGIH exposure limits specific to this compound; similar compounds suggest keeping airborne levels as low as possible
Community Right-To-Know: Listed under various chemical safety regulations for flammability and potential health risks
