Butanol
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Butanol (also known as n-Butanol or Normal Butanol) is a clear, colorless liquid with a mild, alcoholic odor. It is a four-carbon primary alcohol with the chemical formula C4H10O. Butanol is moderately soluble in water and miscible with many organic solvents. Its physical and chemical properties make it a versatile solvent and chemical intermediate. Butanol indicates a high purity grade often used in industrial, pharmaceutical, and chemical synthesis applications.
Description
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Primary Uses
- Industrial Solvent
- Used as a solvent in the manufacture of coatings, paints, adhesives, and inks.
- Serves as a solvent in the production of plastics and plasticizers.
- Chemical Intermediate
- Employed in the synthesis of butyl acrylate, butyl acetate, and other esters.
- Utilized in producing glycol ethers and other specialty chemicals.
- Pharmaceuticals
- Acts as a solvent or extraction agent in pharmaceutical manufacturing processes.
- Used in formulations requiring high purity solvents.
- Fuel Additive
- Sometimes blended with gasoline or other fuels to improve combustion properties.
Secondary Uses
- Cosmetics and Personal Care
- Used as a solvent in some fragrances and nail care products.
- Laboratory Reagent
- Commonly used as a reagent or solvent in chemical laboratories for synthesis and analysis.
- Agricultural Chemicals
- Ingredient in some pesticide formulations as a carrier solvent.
PRODUCT KEY FEATURES
1. Basic Identification Attributes
- Chemical Name (IUPAC): Butan-1-ol
- Common/Trade Names: Butanol 99.4%, n-Butanol, Normal Butanol
- CAS Number: 71-36-3
- HS Code: 2905.14.00
- Molecular Formula: C4H10O
- Molecular Weight: 74.12 g/mol
- Synonyms:
- 1-Butanol
- n-Butyl alcohol
- Normal butanol
- Butyl alcohol
2. Physical & Chemical Properties
- Physical State: Clear, colorless liquid
- Odor: Mild, alcoholic odor
- Boiling Point: 117.7 °C
- Melting Point: -89.8 °C
- Density: 0.81 g/cm³ at 20 °C
- Flash Point: 35 °C (closed cup)
- Solubility: Slightly soluble in water (~7.7 g/100 mL at 20 °C); miscible with alcohol, ether, and organic solvents
- Vapor Pressure: 6.6 kPa at 20 °C
- Refractive Index: 1.397
3. Safety & Hazard Attributes
- Hazard Class (GHS): Flammable Liquid, Category 3
- NFPA Ratings:
- Health: 2
- Flammability: 3
- Reactivity: 0
- Exposure Limits:
- OSHA PEL: 100 ppm (TWA)
- ACGIH TLV: 20 ppm (TWA)
- Toxicity: Moderate toxicity; exposure may cause CNS effects, irritation to eyes and respiratory tract
- Reactivity: Stable under normal conditions; avoid strong oxidizers
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from heat and ignition sources
- Container Type: Airtight metal or chemical-resistant containers
- Shelf Life: 2–3 years under proper storage conditions
- Special Handling: Use grounding and bonding to prevent static discharge; avoid inhalation of vapors and prolonged skin contact
5. Regulatory & Compliance Attributes
- Regulatory Status: Listed under REACH, TSCA, and other major chemical inventories
- Transportation: Classified as a flammable liquid under DOT, IMDG, and IATA
- Waste Disposal: Dispose of according to local, state, and federal hazardous waste regulations
6. Environmental & Health Impact
- Ecotoxicity: Harmful to aquatic organisms; avoid release into the environment
- Persistence: Readily biodegradable
- Bioaccumulation: Low potential for bioaccumulation
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
Personal Protective Equipment (PPE):
- Chemical-resistant gloves
- Safety goggles or face shield
- Protective clothing (lab coat or apron)
- Respiratory protection if ventilation is inadequate
Handling Measures:
- Avoid inhalation of vapors and contact with skin or eyes
- Use in well-ventilated areas
- Ground and bond containers to prevent static discharge
Storage Measures:
- Keep containers tightly closed
- Store away from heat, sparks, open flames, and incompatible materials
Hygiene Practices:
- Wash hands thoroughly after handling
- Do not eat, drink, or smoke in the work area
First Aid Measures
- Inhalation: Move person to fresh air immediately; seek medical attention if symptoms persist
- Skin Contact: Wash affected area thoroughly with soap and water; seek medical help if irritation occurs
- Eye Contact: Rinse cautiously with water for at least 15 minutes; obtain medical attention if irritation continues
- Ingestion: Rinse mouth with water; do not induce vomiting; seek immediate medical care
Firefighting Measures
- Fire Hazards: Highly flammable liquid and vapor; vapors can travel to ignition sources and flash back
- Extinguishing Media: Use alcohol-resistant foam, dry chemical powder, CO₂, or water spray
- Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus (SCBA)
- Decomposition Products: May emit toxic fumes including carbon monoxide and carbon dioxide under fire conditions
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N-Butanol
N-Butanol (1-butanol) is a four-carbon linear alcohol with the chemical formula C₄H₉OH. It is a colorless, flammable liquid with a mild, alcoholic odor. N-Butanol is widely used as a solvent in paints, coatings, adhesives, and chemical synthesis. It serves as an intermediate in the manufacture of plasticizers, butyl acrylate, and other chemicals. Its moderate volatility and solvent properties make it valuable in industrial and commercial applications.