Tetrahydrofuran (THF) Storage — Cyclic Ether Solvent Tank Selection

Storing Tetrahydrofuran? Start Here

Tetrahydrofuran (THF) is a versatile solvent commonly used in industries like spandex production, pharmaceuticals, and PVC adhesives. It's a colorless liquid with a faint ether-like smell and is highly flammable. THF is known for its ability to dissolve a wide range of substances, making it an essential component in many industrial processes. However, its aggressive nature means it can attack many common storage materials.

Can you store it in a poly tank?

No, polyethylene tanks are not suitable for storing THF. THF aggressively attacks and dissolves many plastics, including polyethylene. For safe storage, use stainless steel or carbon steel tanks with PTFE or Kalrez gaskets.

Key Issue: Material Compatibility

THF is a powerful solvent that can swell and dissolve many materials, including PVC and polyurethane. This makes it unsuitable for storage in plastic tanks or containers. Always opt for materials like stainless steel or carbon steel for safe storage.

The safety that actually matters

• Use stainless steel or carbon steel tanks for storage.
• Ensure proper ventilation and vapor recovery systems.
• Maintain a nitrogen blanket over the vapor space to minimize peroxide formation.
• Handle with care due to its flammability and potential health risks.

Common questions

Can I use a plastic tank for short-term storage?

Only for very short-term or transient dispensing. Long-term storage should always be in metal tanks.

What gaskets are compatible with THF?

Use PTFE or Kalrez gaskets. Avoid Viton and Buna-N as they swell severely.

How should I handle THF safely?

Ensure good ventilation, use appropriate protective equipment, and store in a suitable metal tank with vapor recovery.