Tetrahydrofuran (THF)

Tetrahydrofuran (THF) is a clear, volatile, and highly flammable organic solvent with wide applications in polymer science and industrial chemistry. It is frequently used as a reaction medium in the synthesis of organometallic compounds and resins.

CAS No: 109-99-9

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Formula

C₄H₈O

Main Uses

Laboratory Solvent, Chemical Manufacturing

Appearance

Colorless, volatile liquid

Handling

Flammable – Use caution

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Safety Highlights

Tetrahydrofuran is a hazardous chemical classified for its flammability, toxicity, and potential carcinogenicity. It can form explosive peroxides and must be handled with appropriate precautions and protective gear.

Flammable Liquid

Flash point at -21.2°C. Vapors may form explosive mixtures with air. Keep away from ignition sources

Toxic on Contact

Harmful if swallowed. May cause drowsiness, dizziness, or respiratory irritation. Use PPE

Corrosive Agent

Causes serious eye irritation. May cause cancer with prolonged exposure. Avoid inhalation and skin contact

Emergency Measures

In case of fire, use CO₂, dry powder, or foam. Vapors may flash back to the source. Wear self-contained breathing apparatus

Proper Storage

Store tightly sealed in a cool, well-ventilated flammable storage area. Test regularly for peroxide formation. Protect from heat, moisture, and light

Regulatory ID

CAS No: 109-99-9 | UN No: UN2056 | DOT/ADR Hazard Class: 3 (Flammable) | Packaging Group: II

Environmental Care

Prevent product from entering drains or waterways. Risk of explosion in confined systems

PPE Required

Use butyl-rubber gloves, safety goggles, flame-retardant clothing, and A-type respirator for organic vapors

Frequently Asked Questions

Get clear answers to the most important questions about Tetrahydrofuran (THF), including its industrial uses, health hazards, storage protocols, and emergency procedures. These FAQs are designed to support safe handling and compliance with regulatory standards in lab and industrial environments.

What is Tetrahydrofuran (THF) primarily used for?

THF is used as a solvent in polymer synthesis, PVC production, adhesives, and in laboratories for organometallic reactions.

Is THF dangerous to handle?

Yes. THF is flammable, harmful if ingested, irritating to eyes and respiratory tract, and suspected of causing cancer. Use strict safety precautions.

Can THF form peroxides over time?

Yes. THF can form explosive peroxides during storage. Regular testing and safe storage are necessary.

What should I do in case of a THF spill or exposure?

Evacuate the area, ventilate, and contain the spill with absorbent material. Seek immediate medical attention for exposure. Avoid ignition sources.

How should THF be stored safely?

Keep it in tightly sealed containers in flammable liquid storage. Avoid light, air, and moisture. Test periodically for peroxides.

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