HFE-7200 Storage — Ethoxy-Nonafluorobutane Hydrofluoroether Tank Selection

Storing HFE-7200 Novec? Start Here

HFE-7200, also known as Novec 7200, is a versatile hydrofluoroether used in various industrial applications like vapor-phase reflow soldering and immersion cooling. It's known for its higher boiling point of 76°C, making it suitable for high-temperature heat-transfer services. As 3M phases out PFAS production by the end of 2025, you'll need to consider alternatives like Chemours Opteon SF or Solvay Galden HT-line. If you're using HFE-7200, ensure your storage and handling practices are up to date with these changes.

Can you store it in a poly tank?

Yes, HFE-7200 can be stored in polyethylene tanks. However, it's crucial to verify that there's no plasticizer leaching during extended contact. HDPE and XLPE tanks are standard choices, but always check compatibility with your specific setup.

Key Issue: Solvency Concerns

HFE-7200's ethyl group gives it a slightly higher solvency than its counterparts, which can lead to issues like plasticizer extraction and elastomer swelling. This is especially important in high-purity applications, where extractables control is critical.

The safety that actually matters

• Use FKM (Viton) gaskets for the best seal performance.
• Avoid EPDM and Buna-N for primary seals due to swelling and extraction risks.
• Maintain exposure below the recommended limit of 200 ppm over an 8-hour period.
• Ensure proper ventilation in storage and use areas.

Common questions

What materials are compatible with HFE-7200?

HDPE, XLPE, and stainless steel are compatible. Avoid soft PVC and natural rubber.

Can HFE-7200 be used for immersion cooling?

Yes, its higher boiling point makes it ideal for high-power-density immersion cooling applications.

Is HFE-7200 regulated for transport?

No, it is not regulated for ground transport, making logistics simpler.