Product Name: N-Dodecane
Synonyms: Laurane, Dodecane, Dihexyl, Dodecan
Chemical Formula: C12H26
CAS Number: 112-40-3
Recommended Use: Laboratory solvent, lubricant, organic synthesis, fuel testing
Manufacturer Contact: Manufacturer’s name, address, emergency phone
Emergency Overview: Colorless liquid, mild hydrocarbon odor
Hazard Classification: Flammable liquid, skin irritant, aspiration hazard, aquatic toxicity
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor. May be fatal if swallowed and enters airways. Causes skin irritation. Toxic to aquatic life with long lasting effects.
Precautionary Statements: Avoid heat, sparks, open flames. Use only non-sparking tools. Wear protective gloves. Wash hands thoroughly after handling. Avoid release into the environment.
GHS Pictograms: Flame, exclamation mark, environmental hazard, health hazard
Chemical Name: N-Dodecane
Concentration: >99% (pure form)
Impurities: May contain minor alkanes (C11, C13 fractions)
Common Additives: None typically present in reagent grade
CAS Number: 112-40-3
EC Number: 203-967-9
Inhalation: Remove person to fresh air. Provide respiratory support if breathing is difficult. Seek medical attention.
Skin Contact: Wash skin with plenty of water and mild soap. Remove contaminated clothing. Seek medical help for persistent irritation.
Eye Contact: Rinse eyes with water for at least 15 minutes, lifting eyelids. Get medical assistance.
Ingestion: Do not induce vomiting. Rinse mouth. If person feels unwell or drowsy, seek immediate medical attention due to aspiration risk.
Notes to Physician: Treat symptomatically, monitor for respiratory distress due to aspiration risk.
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam, water spray (do not use direct water jet)
Hazards from Fire: Emits toxic fumes of carbon oxides when burning. Vapors may form explosive mixtures with air.
Protective Equipment: Wear self-contained breathing apparatus and full firefighting gear
Precautions: Isolate area. Cool tanks with water spray. Prevent run-off from entering drains or water bodies.
Specific Hazards: Flash point 71°C (closed cup). Vapors heavier than air, can travel and ignite at a distance.
Personal Precautions: Evacuate unnecessary personnel. Ventilate area. Avoid contact with skin, eyes, and clothing.
Protective Equipment: Chemical-resistant gloves, goggles, protective clothing, respiratory protection for large spills
Spill Cleanup: Contain with inert absorbent (sand, earth). Transfer absorbed material into closed, labeled containers.
Environmental Precautions: Prevent entry into sewers, waterways, or soil. Notify authorities if significant quantities enter the environment.
Decontamination: Wash area after cleanup. Dispose contaminated materials following local regulations.
Handling: Handle away from heat, sparks, and open flames. Use explosion-proof equipment. Keep containers tightly sealed. Ground all handling equipment.
Storage: Store in cool, well-ventilated areas. Keep away from oxidizing agents, acids, and ignition sources. Store in closed, labeled containers.
Precautions: Use only non-sparking tools. Take precautions against static buildup. Avoid inhalation of vapors.
Incompatible Materials: Strong oxidizing agents, acids, halogens.
Storage Conditions: Temperature-controlled conditions, dry area, good ventilation.
Occupational Exposure Limits: No specific OSHA or ACGIH exposure limits; treat as hydrocarbon solvent
Engineering Controls: Local exhaust ventilation, explosion-proof ventilation systems recommended
Personal Protection: Wear chemical splash goggles, nitrile or neoprene gloves, flame-resistant lab coats, closed footwear.
Respiratory Protection: Use organic vapor cartridge respirator under high vapor conditions.
Hygiene Measures: Wash hands after handling. Do not eat, drink, or smoke in work area.
Appearance: Colorless, clear liquid
Odor: Faint, gasoline-like odor
Molecular Weight: 170.33 g/mol
Melting Point: -9.6°C
Boiling Point: 216°C
Flash Point: 71°C (closed cup)
Auto-Ignition Temperature: 204°C
Explosive Limits: Lower 0.6%, Upper 4.5% by volume in air
Solubility: Insoluble in water; soluble in organic solvents
Vapor Pressure: 0.27 mmHg at 25°C
Density: 0.749 g/cm³ at 20°C
Viscosity: 1.49 cP at 20°C
Chemical Stability: Stable under normal conditions of storage and use.
Hazardous Reactions: May react with strong oxidizing agents producing heat and possible fire.
Decomposition Products: Carbon monoxide, carbon dioxide, hydrocarbons.
Polymerization: Does not undergo hazardous polymerization.
Conditions to Avoid: Heat, flame, static discharge, incompatible materials.
Acute Toxicity: Low toxicity by inhalation or dermal routes; aspiration can be fatal if swallowed.
Skin Contact: May cause irritation, defatting, redness.
Eye Contact: May cause mild, transient irritation.
Inhalation: Excessive inhalation may cause dizziness, headache, or central nervous system depression.
Ingestion: May cause vomiting, chemical pneumonitis if aspirated.
Chronic Effects: Prolonged or repeated skin exposure may lead to dermatitis.
Carcinogenicity: Not classified as carcinogen by IARC, NTP, OSHA.
Other Effects: No reproductive or developmental toxicity noted in available studies.
Environmental Fate: Not readily biodegradable, potential for bioaccumulation in aquatic organisms.
Ecotoxicity: Toxic to aquatic life, especially in large spills.
Persistence and Degradability: Degrades slowly in environment, persistent in soil and sediment.
Mobility: Low solubility in water reduces mobility, may float on water surfaces.
Aquatic Toxicity: Acute LC50 (fish): 2.2 mg/L/96h; EC50 (daphnia): 2.6 mg/L/48h.
Other Adverse Effects: May accumulate in aquatic organisms, harming fish and invertebrates.
Waste Disposal: Incinerate or dispose of at permitted chemical waste facility. Do not dispose down drain.
Contaminated Packaging: Rinse containers; treat rinsate as hazardous waste. Follow local, regional, and national regulations.
Precautions: Avoid uncontrolled release into environment.
Legal Requirements: Consult local environmental and hazardous waste authority for disposal guidance.
UN Number: UN 1993
UN Proper Shipping Name: Flammable Liquid, N.O.S. (N-Dodecane)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels: Flammable liquid
Environmental Hazards: Marine pollutant
Special Precautions: Avoid transport with incompatible substances, keep away from sources of ignition. Transport in properly labeled, sealed containers.
OSHA: Flammable liquid under OSHA regulations
TSCA: Listed in the Toxic Substances Control Act inventory
SARA Title III: Not listed under Sections 302/304/313
EU Regulations: Classified as hazardous under EU CLP (Regulation (EC) No 1272/2008)
Other Regulations: Subject to workplace safety controls and reporting in several regions. Always check regional or national inventories and restrictions.
Label Requirements: Hazard pictograms, hazard and precautionary statements, supplier identification.
