N-Butanol

N-Butanol (also known as 1-Butanol or Butyl Alcohol) is a clear, colorless liquid with a strong, characteristic odor. It is used widely in coatings, adhesives, chemical synthesis, and as a solvent. While moderately flammable, its primary hazards are from inhalation, ingestion, and eye contact.

CAS No: 71-36-3

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Formula

C₄H₁₀O

Main Uses

Solvents, Chemical Intermediates

Appearance

Clear, Colorless Liquid

Handling

Flammable – Use Caution

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Safety Highlights

N-Butanol is a hazardous substance requiring careful handling. Exposure through inhalation, skin, or eyes can result in serious irritation or systemic effects. Vapors are heavier than air and can travel long distances to ignition sources.

Flammable Liquid

Flash point 35°C. Vapors can ignite at room temperature.

Toxic on Contact

Harmful if swallowed. May cause drowsiness, dizziness, or nausea.

Corrosive Agent

Causes skin irritation and serious eye damage. Eye contact may lead to irreversible injury.

Emergency Measures

Use CO₂, dry powder, or foam to extinguish fires. Avoid water jets. In case of skin/eye contact, rinse thoroughly and seek medical attention.

Proper Storage

Store in tightly sealed containers in a dry, cool, ventilated area. Keep away from ignition sources and oxidizers.

Regulatory ID

UN No: UN1120 | DOT Hazard Class: 3 (Flammable) | Packing Group: III

Environmental Care

Toxic to aquatic life in high concentrations. Avoid release into drains or water bodies.

PPE Required

Use nitrile gloves, flame-retardant clothing, eye protection, and organic vapor respirators.

Frequently Asked Questions

Whether you’re working with it in manufacturing, coatings, or lab environments, these quick answers cover what you need to know—from flammability risks to protective gear.

What is N-Butanol used for?

It’s used as a solvent in industrial coatings, adhesives, chemical synthesis, and as a precursor for butyl esters and plasticizers.

Is N-Butanol hazardous to health?

Yes. Inhalation can depress the central nervous system. It may also cause skin irritation and irreversible eye damage upon direct contact.

Is N-Butanol flammable?

Yes. It is a Category 3 flammable liquid with a flash point of 35°C and can form explosive vapor-air mixtures.

How should I store and handle N-Butanol?

Keep it in a tightly closed container in a ventilated, flammable storage area away from heat, sparks, and oxidizers.

What safety equipment is needed?

Wear protective gloves, chemical safety goggles, flame-retardant clothing, and an A-type respirator if vapor concentration is high.

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