Product Name: Dihexylamine
Chemical Formula: C12H27N
CAS Number: 143-16-8
Synonyms: N-Hexylhexan-1-amine
Recommended Use: Industrial chemical, chemical synthesis, corrosion inhibitor
Supplier Details: Manufacturer address, phone number, emergency contact (chemtrec or specific company hotline)
Emergency Phone Number: Provided for spills, exposure, or fire
GHS Classification: Acute Toxicity (Oral/dermal/inhalation): Category 3; Skin Corrosion/Irritation: Category 1B; Serious Eye Damage: Category 1; Specific Target Organ Toxicity (Single Exposure): Category 3
Pictograms: Skull and crossbones, corrosion, exclamation mark
Signal Word: Danger
Hazard Statements: Toxic if swallowed, in contact with skin, or inhaled. Causes severe skin burns and eye damage. May cause respiratory irritation.
Precautionary Statements: Avoid breathing fumes/mist/vapors/spray. Wash hands and face thoroughly after handling. Wear protective gloves/protective clothing/eye protection/face protection.
Chemical Name: Dihexylamine
Concentration: 98–100%
CAS Number: 143-16-8
Impurities/Additives: Trace impurities may include aliphatic amines (documented according to batch)
Inhalation: Remove individual to fresh air, keep comfortable for breathing. Seek immediate medical attention.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water, seek medical attention if irritation or burns occur.
Eye Contact: Rinse thoroughly with water for at least 15 minutes, lifting eyelids. Remove contact lenses if present and easy to do. Urgent medical attention.
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, do not induce vomiting, seek medical attention promptly.
Most Important Symptoms/Effects: Burning, cough, shortness of breath, redness, pain, blisters, vision damage.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, sprayed water
Unsuitable Extinguishing Media: Direct water jet
Specific Hazards: Flammable liquid and vapor. Vapors may form explosive mixtures with air. Fires can produce toxic nitrogen oxides, ammonia, and carbon oxides.
Special Protective Equipment: Full-face self-contained breathing apparatus, fire-resistant protective clothing
Additional Advice: Cool unaffected containers exposed to fire with water spray. Evacuate area. Avoid inhaling combustion gases.
Personal Precautions: Use chemical-resistant gloves, protective clothing, eye protection. Ventilate area. Avoid breathing vapors.
Environmental Precautions: Prevent run-off to sewage system, surface waters, or soil.
Methods for Containment: Stop leak if safe. Dike spill area.
Methods for Cleaning Up: Absorb with inert material (sand, earth). Place in chemically compatible container for disposal. Ventilate area after clean-up.
Safe Handling: Work in a well-ventilated area, avoid contact with skin, eyes, and clothing. Use only outdoors or in fume hood. Ground/bond containers.
Storage Conditions: Store in tightly closed chemical-resistant containers. Keep in dry, cool, well-ventilated place. Keep away from heat, sparks, open flame, and oxidizing agents.
Incompatible Materials: Acids, oxidizers, peroxides, halogens.
Other Notes: Keep out of reach of children. Store away from food and beverages.
Occupational Exposure Limits: No established OSHA/NIOSH limit, suggest internal limit: 1 ppm for an 8-hour TWA.
Engineering Controls: Use with adequate ventilation, fume hood recommended. Eyewash stations and emergency showers nearby.
Personal Protective Equipment: Respirator (if ventilation insufficient), impermeable gloves, chemical splash goggles, face shield, lab coat, chemical-resistant apron, antistatic shoes.
Hygiene Measures: Wash hands after handling. Do not eat, drink or smoke in work area.
Appearance: Colorless to pale yellow liquid
Odor: Strong amine-like odor
pH: Alkaline in solution
Melting Point/Freezing Point: -40°C
Boiling Point: 226–232°C
Flash Point: 98°C (close cup)
Evaporation Rate: Not rapid
Flammability: Flammable liquid, can be ignited by heat/spark/flame
Explosion Limits: Not available
Vapor Pressure: 0.4 mmHg (at 25°C)
Vapor Density: ~6 (air = 1)
Relative Density: 0.79–0.80 (water = 1)
Solubility: Slightly soluble in water, mixes well with alcohol, ether, and other organics
Partition Coefficient: log Kow 4.5
Autoignition Temperature: 245°C
Decomposition Temperature: Not specified
Viscosity: Moderate
Chemical Stability: Stable under recommended storage conditions.
Reactivity: Reacts with acids forming corrosive vapors.
Possibility of Hazardous Reactions: Can react with strong oxidizers, acids, acid chlorides.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, ammonia.
Conditions to Avoid: Heat, flame, sparks, static discharge.
Acute Toxicity (Oral): LD50 (rat): 276 mg/kg
Acute Toxicity (Dermal): LD50 (rabbit): ~890 mg/kg
Acute Toxicity (Inhalation): Data limited, estimated to be toxic at low concentrations.
Skin Corrosion/Irritation: Causes severe irritation, blistering, burns.
Serious Eye Damage/Irritation: Permanent eye injury possible, severe pain, redness, loss of vision.
Respiratory Sensitization: Inhalation may trigger coughing, breathing difficulties, chest pain.
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA.
Reproductive Toxicity: No data on reproductive effects.
Other Effects: Headache, dizziness, nausea, central nervous system depression in high exposure.
Ecotoxicity: Harmful to aquatic life, fish (96 h LC50): 12 mg/L, daphnia (48 h EC50): 6 mg/L
Persistence and Degradability: Not easily degradable, some breakdown in soil and water after weeks or months
Bioaccumulative Potential: Likely to accumulate in aquatic organisms (log Kow > 4)
Mobility in Soil: Moderate to high, may leach to groundwater
Other Adverse Effects: Fishkills and ecosystem disruption possible in case of large releases
Product Disposal: Treat as hazardous waste. Dispose via licensed chemical waste contractor. Avoid dumping to drains/waterways.
Container Disposal: Triple-rinse, puncture, dispose according to federal/state/local regs.
Waste Codes: F003 (solvent waste, if applicable), federal and state hazardous waste lists
Recycling Options: Not usual for small quantities. Larger batches may be processed under strict controls.
UN Number: UN2431
UN Proper Shipping Name: Dihexylamine
Transport Hazard Class: 8 (Corrosive), optional 6.1 (Toxic)
Packing Group: II (medium danger)
Marine Pollutant: Yes
Special Precautions for Transport: Steel drums, corrosion-resistant IBCs, vented closures recommended.
Additional Labeling: Toxic, corrosive marks
OSHA: Covered under Hazard Communication Standard as hazardous chemical
TSCA: Listed in US TSCA inventory
EU REACH: Registered, subject to restrictions (check current status)
Canadian DSL: Listed
SARA Title III: Not specifically listed as extremely hazardous, but general reporting may apply
State Regulations: California Proposition 65: Not listed, but check for updates
WHMIS Classification (Canada): Class D1B (Toxic), Class E (Corrosive Material)
Labeling Requirements: Signal word, pictograms, hazard statements as per GHS/OSHA/EU
