Product Name: 2-Butylamine
Chemical Formula: C4H11N
Synonyms: sec-Butylamine, 2-Butanamine
CAS Number: 109-73-9
Recommended Uses: Intermediate in organic synthesis, laboratory chemical
Supplier: Check label for manufacturer or distributor contact; phone numbers often printed directly on containers
Emergency Contact: CHEMTREC (800) 424-9300 (USA), label may have additional local numbers
Classification: Flammable liquid (Category 2), Acute Toxicity Oral (Category 4), Skin Corrosion/Irritation (Category 1B), Serious Eye Damage (Category 1)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor; Harmful if swallowed; Causes severe skin burns and eye damage; May cause respiratory irritation
Pictogram: Flame, Corrosion, Exclamation Mark
Precautionary Statements: Keep away from heat/sparks/open flames/hot surfaces, avoid breathing fumes/vapor/spray, wear protective gloves/eye protection/face protection, wash thoroughly after handling
Chemical Name: 2-Butylamine
Concentration: Typically 95% or higher, rarely diluted
Impurities: May contain trace secondary amines or hydrocarbon residues
CAS Number: 109-73-9
EC Number: 203-699-2
Inhalation: Move exposed person to fresh air; keep comfortable; if breathing is difficult, provide oxygen; seek medical help
Skin Contact: Remove contaminated clothing; rinse skin thoroughly with water for at least 15 minutes; immediate medical attention required
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy; continue washing; urgent medical attention essential
Ingestion: Rinse mouth with water; never induce vomiting; do not give anything by mouth to an unconscious person; immediate transport to medical care
Symptoms: Burning sensation, cough, sore throat, labored breathing, eye pain, skin blisters, possible lung damage
Suitable Extinguishing Media: Alcohol-resistant foam, CO2, dry chemical powder, water spray (not direct water jet)
Specific Hazards: Vapors may form explosive mixtures with air; fire may produce irritating or toxic gases like ammonia and nitrogen oxides
Protective Equipment: Full protective clothing, self-contained breathing apparatus
Special Procedures: Cool fire-exposed containers with water spray from a safe distance; remove containers from danger zone if possible without risk; keep run-off water out of sewers and water bodies
Personal Precautions: Evacuate unnecessary personnel; ventilate area; avoid breathing vapors
Environmental Precautions: Keep out of drains, surface water, or soil; alert local environmental authorities if large spill occurs
Cleanup Methods: Absorb spill with inert material (sand, earth, vermiculite); Collect in closed containers for disposal; wash area with copious water but avoid splashing; avoid naked flames or sources of ignition
Handling: Use proper ventilation; ground all equipment; avoid contact with skin, eyes, clothing; keep away from heat, sparks, and open flames; never use near incompatible materials (strong oxidizers, acids)
Storage: Tightly seal containers; store in cool, dry, well-ventilated area away from direct sunlight and sources of ignition; keep away from food and drink; secure against unauthorized access
Exposure Limits: ACGIH TLV 5 ppm (Skin); OSHA PEL 5 ppm (Skin)
Engineering Controls: Local exhaust ventilation; explosion-proof equipment; eye wash and safety shower nearby
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), impervious apron, splash-proof goggles, face shield, flame-resistant lab coat
Respiratory Protection: Use NIOSH-approved respirator with organic vapor cartridge if ventilation is insufficient
Hygiene Measures: Wash hands before eating, smoking, or using the restroom; do not reuse contaminated clothing
Appearance: Colorless to yellowish liquid
Odor: Ammonia-like, strong, sharp
pH: Not relevant for pure substance
Melting Point: -49°C
Boiling Point: 63°C
Flash Point: -18°C (closed cup)
Evaporation Rate: Rapid at room temperature
Vapor Pressure: 103 mmHg at 20°C
Solubility in Water: Miscible
Density: 0.74 g/cm³ at 20°C
Viscosity: Low
Partition Coefficient (log Kow): 0.63
Autoignition Temperature: 310°C
Explosion Limits: Lower: 1.6% vol; Upper: 13% vol (in air)
Chemical Stability: Remains stable under recommended storage and handling conditions
Conditions to Avoid: Heat, flame, sparks, static discharge, direct sunlight
Materials to Avoid: Strong oxidizers, acids, nitrating agents, halogens; reacts violently, risk of fire or explosion
Hazardous Decomposition Products: Nitrogen oxides, ammonia, carbon monoxide, carbon dioxide
Polymerization: Not expected under normal conditions
Likely Routes of Exposure: Inhalation, skin absorption, eye contact, ingestion
Acute toxicity: Oral LD50 (rat) ~ 520 mg/kg; skin and eye irritant; inhalation may cause lung damage
Chronic Effects: Prolonged exposure may damage liver, kidneys, or central nervous system
Symptoms: Burns, respiratory distress, headache, dizziness, nausea, chemical pneumonitis possible
Carcinogenicity: No IARC, NTP, or OSHA listing
Mutagenicity/Teratogenicity: Animal data limited, no clear evidence of genetic or reproductive effects
Aquatic Toxicity: Harmful to aquatic life; fish LC50 (96h) estimated around 200 mg/L
Persistence/Degradability: Readily biodegradable in water and soil
Bioaccumulative Potential: Low (log Kow 0.63)
Mobility in Soil: High; may leach to groundwater
Other Adverse Effects: High pH or toxicity may disrupt aquatic systems, especially in case of large releases
Waste Treatment Methods: Incinerate in suitable facility; neutralize with acid then dispose as hazardous waste according to local, state, federal regulations
Contaminated Packaging: Rinse thoroughly, treat as hazardous chemical container; follow label instructions for disposal
Do Not: Pour down drains, open sewers, or natural waterways
UN Number: 1125
Shipping Name: Butylamines (2-Butylamine)
Transport Hazard Class: 3 (Flammable Liquids), 8 (Corrosives)
Packing Group: II (medium hazard)
Labels: Flammable Liquid, Corrosive
Marine Pollutant: No, but spills should be contained
TSCA (USA): Listed
REACH (EU): Registered or pre-registered substance
SARA Title III: Listed (Acute Health, Fire Hazard)
California Prop 65: Not listed
EC Classification: F, C; R phrases: R11 (Highly flammable), R34 (Causes burns); S phrases: S16, S26, S36/37/39, S45
Canada (DSL): Listed
Other Local Regulations: Check with relevant authorities for workplace and environmental rules specific to region
