HFPO-DA / GenX Storage — PFOA-Replacement Polymerization-Aid Tank Selection

Storing HFPO-DA / GenX? Start Here

If you're handling HFPO-DA, commonly known as GenX, you're dealing with a chemical used as a polymerization aid in fluoropolymer production. It's a replacement for PFOA, offering similar functionality in creating PTFE and other fluoropolymers. However, it's important to note that while initially marketed as a safer alternative, recent data shows it shares some of the same environmental and health concerns as its predecessor.

Can you store it in a poly tank?

Yes, you can store HFPO-DA in a polyethylene tank. Both HDPE and XLPE are suitable for storing the typical 25-30% ammonium salt solution of HFPO-DA. Polypropylene is also commonly used for fittings and pump bodies. However, avoid using copper, brass, and aluminum, as these materials can corrode and contaminate the solution.

Key Issue: Environmental Persistence

While GenX was initially introduced as a safer alternative to PFOA, it has been found to persist in the environment similarly. This persistence has led to regulatory scrutiny and a requirement for careful handling and storage to prevent contamination, particularly in water sources.

The safety that actually matters

• Use only compatible materials like HDPE or XLPE for tanks.
• Avoid copper, brass, and aluminum in any part of the storage system.
• Follow local regulations for environmental safety and contamination prevention.

Common questions

Is GenX safer than PFOA?

While initially marketed as safer, recent studies show GenX has similar environmental and health impacts.

What materials should I avoid?

Avoid using copper, brass, and aluminum as they can corrode and contaminate the solution.

Can I use a standard polyethylene tank?

Yes, standard HDPE or XLPE tanks are suitable for storing HFPO-DA solutions.