© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Chemical Name: 3,5-Dimethylheptane Chemical Formula: C9H20 CAS Number: 562-49-2 Common Uses: Solvent in organic synthesis, fuel component, hydrocarbon research standard Appearance: Clear, colorless liquid Odor: Mild, gasoline-like scent Boiling Point: Around 151°C Molecular Weight: Approximately 128.25 g/mol
Hazard Class: Flammable liquid Signal Word: Danger Major Hazards: Fire risk, aspiration into lungs may cause chemical pneumonitis, central nervous system effects such as dizziness or headache, skin and eye irritation possible, harmful if swallowed Pictograms: Flame, exclamation mark Routes of Exposure: Inhalation, ingestion, skin and eye contact Environmental Risks: May be toxic to aquatic life with long-lasting effects
Chemical Composition: Pure substance Main Component: 3,5-Dimethylheptane (greater than 95%) Impurities: Trace alkanes (may include isomers of heptane or octane from synthesis or storage)
Inhalation: Move to fresh air, keep person at rest, seek medical advice if symptoms persist Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, get medical attention for persistent irritation Eye Contact: Rinse with plenty of clean water for several minutes, consult a healthcare provider for persistent discomfort Ingestion: Do not induce vomiting, seek immediate medical assistance, risk of aspiration into lungs poses a greater danger than toxicity from absorption Additional Information: Symptoms may include headache, drowsiness, nausea, or dizziness
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide Hazards from Combustion: Produces carbon monoxide, carbon dioxide, possibly unburned hydrocarbons Special Protective Equipment: Full protective clothing, self-contained breathing apparatus, stay upwind to avoid fumes Explosion Hazards: Vapors can form explosive mixtures with air, flashback possible along vapor travel Firefighting Advice: Cool containers exposed to fire with water spray, use water with caution as runoff may spread fire
Personal Precautions: Eliminate all ignition sources, ventilate area, use personal protective equipment Containment: Stop leak if safe to do so, prevent entry into sewers or watercourses Cleanup Methods: Absorb with inert material such as sand or earth, collect in suitable containers for disposal Environmental Precautions: Notify relevant environmental authorities of larger spills or contamination risk
Handling Advice: Keep away from sources of ignition, ensure proper ventilation, avoid breathing vapor or mist, avoid skin and eye contact Storage Requirements: Store in a cool, dry, well-ventilated place, keep container tightly sealed and clearly labeled, separate from oxidizers, strong acids, and combustibles Other Considerations: Ground all equipment to prevent static buildup, do not eat or drink in processing areas
Engineering Controls: Local exhaust ventilation recommended, explosion-proof electrical systems Personal Protective Equipment: Chemical-resistant gloves, splash goggles, lab coat or apron, in case of high vapor concentrations use a suitable organic vapor respirator Hygiene Measures: Wash hands after handling, do not touch face, do not reuse contaminated clothing without laundering Occupational Exposure Limits: Not specifically established, recommend following general hydrocarbon exposure guidelines
Appearance: Colorless liquid Odor: Mild, hydrocarbon type Boiling Point: Range around 151°C Melting Point: Below -50°C Density: Approximately 0.72 g/cm³ at 20°C Vapor Pressure: Moderate at room temperature Solubility: Practically insoluble in water, miscible with organic solvents Flash Point: Around 40°C (closed cup) Autoignition Temperature: Above 200°C Viscosity: Low Evaporation Rate: Faster than water, slower than ether
Chemical Stability: Stable under normal conditions Reactivity: Reacts with strong oxidizers, acids Hazardous Reactions: Elevated temperatures encourage formation of hazardous decomposition products Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, various hydrocarbons Polymerization: Not known to polymerize Storage Advice: Avoid high heat, open flames, sparks, incompatible substances
Inhalation Effects: Exposure can cause respiratory irritation, dizziness, headaches, possible drowsiness Ingestion Effects: Swallowing may result in lung damage if aspirated, gastrointestinal irritation possible Skin Effects: Can irritate on prolonged or repeated contact, potential for defatting and dermatitis Eye Effects: May cause discomfort or mild irritation Long-Term Effects: Repeated high-level exposure may affect the central nervous system or liver Acute Toxicity Data: Specific LD50 or LC50 values are not widely published, but data from similar alkanes suggest low oral toxicity but a significant aspiration hazard Sensitization: Not typically a skin sensitizer Carcinogenicity: Not classified as carcinogenic by regulatory bodies so far
Persistence and Degradability: Not readily biodegradable, expected to persist in the environment for weeks Bioaccumulation Potential: High due to hydrocarbon nature, may accumulate in aquatic life Aquatic Toxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment Mobility: Spreads quickly on water surfaces, limited water solubility Wastewater Impact: Treated as a hazardous discharge, disrupts biological treatment plants
Waste Handling: Collect all waste in labeled, sealed containers Disposal Method: Combust in approved incineration facilities equipped for hydrocarbons, avoid discharge to sewers or streams Regulatory Guidance: Follow local, regional, and national regulations for hazardous chemical disposal Container Disposal: Empty containers may retain product residues, handle as hazardous waste
UN Number: 3295 (Hydrocarbons, liquid, n.o.s.) Transport Class: 3 (Flammable Liquid) Packing Group: III Labeling Requirements: Flammable liquid label needed during shipment Special Precautions: Secure containers upright, keep away from heat sources, restrict shipping with oxidizers and compressed oxygen Spill Response: Notify authorities immediately for significant spills during transport
Chemical Regulation: Subject to regional regulations for flammable substances and hazardous chemicals Occupational Safety: Works best under health and safety programs that address hydrocarbons and flammable solvents Environment: Listed as potentially hazardous to aquatic systems, restrictions on discharge and emissions typically enforced Other Relevant Laws: Comply with chemical storage, handling, and transport requirements from fire codes and workplace safety agencies
