Product Name: 2-Butanol
Synonyms: sec-Butanol, sec-Butyl alcohol, 2-Butyl alcohol, Butan-2-ol
CAS Number: 78-92-2
Recommended Use: Laboratory chemicals, solvent, chemical synthesis
Supplier Details: Information provided by the distributing or manufacturing company, with addresses and emergency phone numbers for immediate assistance
Classification: Flammable liquid (Category 3), Eye irritation (Category 2A), Specific target organ toxicity (single exposure, Category 3, narcotic effects)
Label Elements: Flammable symbol, exclamation mark
Hazard Statements: Flammable liquid and vapor, causes serious eye irritation, may cause drowsiness or dizziness
Precautionary Statements: Avoid breathing fumes, keep away from heat/sparks/open flames, use explosion-proof equipment, wear eye/face protection, wash hands thoroughly after handling
Chemical Name: 2-Butanol
Concentration: 99% or as indicated on the product label
Chemical Formula: C4H10O
Molecular Weight: 74.12 g/mol
Impurities: Trace impurities often constitute less than 1% and vary by batch
Inhalation: Remove person to fresh air, seek medical attention if symptoms persist, monitor for difficulty breathing
Skin Contact: Wash with plenty of soap and water, remove contaminated clothing, seek medical help if irritation continues
Eye Contact: Rinse with plenty of water for at least 15 minutes, lift eyelids to assure thorough cleaning, seek immediate medical aid
Ingestion: Rinse mouth, do not induce vomiting, call poison control or a doctor right away
Most important symptoms/effects: Nausea, headache, dizziness, eye redness, respiratory discomfort
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide
Specific Hazards: Vapors may form explosive mixtures with air, combustion yields toxic fumes (carbon oxides)
Firefighting Instructions: Wear self-contained breathing apparatus, use water spray to cool containers, avoid inhalation of smoke
Unusual Fire/Explosion Hazards: Containers may explode if exposed to fire or excessive heat, vapors may travel and ignite
Personal Precautions: Evacuate area, provide adequate ventilation, use personal protective equipment
Environmental Precautions: Prevent entry into drains or waterways, contain spill to prevent environmental contamination
Methods for Cleanup: Absorb with inert material (sand, earth, vermiculite), collect in suitable container for disposal, ventilate the area, wash spill site after material removal
Handling: Keep away from sparks and open flames, avoid inhalation of vapors, use only with adequate ventilation, avoid contact with skin and eyes
Storage: Store in a tightly closed container, in a cool, dry, and well-ventilated area, keep away from incompatible materials like strong oxidizers, acids, store away from sources of ignition, use explosion-proof equipment in storage areas
Occupational Exposure Limits: OSHA TWA 100 ppm (300 mg/m³), ACGIH TWA 100 ppm
Engineering Controls: Use fume hoods or local exhaust ventilation, maintain eyewash stations and safety showers in work areas
Personal Protective Equipment: Chemical-resistant gloves (nitrile, butyl), splash-proof goggles, lab coat or protective clothing, respiratory protection if ventilation is inadequate
Work Hygiene: Do not eat, drink, or smoke while handling the substance
Appearance: Clear, colorless liquid
Odor: Characteristic, mildly sweet odor
Odor Threshold: 5 ppm
pH: Not applicable
Melting Point: -115°C
Boiling Point: 99°C
Flash Point: 24°C (75°F) (closed cup)
Evaporation Rate: 0.6 (n-butyl acetate = 1)
Flammability: Flammable liquid
Upper/Lower Flammability Limits: 2.4% (lower), 8% (upper) in air
Vapor Pressure: 15.7 mmHg at 20°C
Vapor Density: 2.6 (air = 1)
Density: 0.808 g/cm³ at 20°C
Solubility: Soluble in water, miscible with ethanol and ether
Partition Coefficient (n-octanol/water): 0.61
Autoignition Temperature: 405°C
Decomposition Temperature: No data available
Viscosity: 3.58 mPa·s at 20°C
Chemical Stability: Stable under normal conditions of temperature and pressure
Conditions to Avoid: Heat, flames, sparks, incompatible materials
Incompatible Materials: Strong oxidizers, acids, alkali metals
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating fumes
Hazardous Polymerization: Does not occur
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Oral LD50 (rat): 2190 mg/kg; Dermal LD50 (rabbit): >2000 mg/kg; Inhalation LC50 (rat, 4h): >19,000 mg/m³
Short-term Symptoms: Drowsiness, nausea, headache, dizziness, eye irritation
Chronic Effects: Prolonged or repeated contact can defat skin, repeated overexposure may cause central nervous system effects
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Ecotoxicity: Toxic to aquatic life at high concentrations (LC50 96 h for fish 3650 mg/L), may cause long-lasting harmful effects to aquatic environments
Mobility: High mobility in soil and water, easily dispersed
Persistence and Degradability: Biodegradable, expected to be removed from water and soil rapidly
Bioaccumulative Potential: Low, log Kow indicates low potential to bioaccumulate
Other Adverse Effects: May contribute to chemical oxygen demand in natural waters
Waste Treatment Methods: Small amounts can be diluted and flushed with plenty of water if local regulations permit, otherwise must be incinerated in a chemical incinerator equipped with afterburner and scrubber
Disposal of Contaminated Packaging: Empty containers should be disposed of as hazardous waste, rinse thoroughly before disposal
Precautions for Disposal: Do not discharge into drains or the environment, consult relevant local and national regulations for disposal guidelines
UN Number: 1120
UN Proper Shipping Name: Butanols
Transport Hazard Class: 3 (Flammable Liquids)
Packing Group: II
Labels: Flammable liquid
Special Provisions: Ensure packaging is secure, containers upright and tightly closed, stow away from foodstuffs and incompatible materials, comply with IATA, IMDG, and DOT regulations
OSHA Status: Regulated hazardous material under federal OSHA
SARA Title III: Section 311/312 hazard categories (fire, acute health)
TSCA Inventory: Listed
REACH Status: Registered substance in the European Union
Other Regulations: State and local regulations may impose additional restrictions or labeling requirements, always consult the current regulatory landscape when processing or transporting this chemical
