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Fluid Cells THF Resistant?

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David Durham posted on Wed, Jan 26 2011 10:01 AM

I would like to know if your Fluid Cells, particularly the MTFML and the MMTMEC, are Tetrahydrafuran (THF) resistant?

Best Regards,

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Verified by David Durham

The fluid cell itself shouldn't be harmed by THF. It's just glass, PTFE, and gold plated platinum-iridium wire.

The challenge is finding a suitable o-ring material. We offer silicone, fluorosilicone and Viton o-rings, but none of these have good resistance to THF. Only fluoropolymers like PTFE have suitable chemical resistance, but even more advanced ones like Kalrez are quite stiff and therefore not suitable for use with the MultiMode fluid cells.

There's a good chemical compatibility guide here for reference.

 

Regards,

-Ben

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Top 10 Contributor
75 Posts
Points 3,652
Verified by David Durham

The fluid cell itself shouldn't be harmed by THF. It's just glass, PTFE, and gold plated platinum-iridium wire.

The challenge is finding a suitable o-ring material. We offer silicone, fluorosilicone and Viton o-rings, but none of these have good resistance to THF. Only fluoropolymers like PTFE have suitable chemical resistance, but even more advanced ones like Kalrez are quite stiff and therefore not suitable for use with the MultiMode fluid cells.

There's a good chemical compatibility guide here for reference.

 

Regards,

-Ben

  • | Post Points: 13
Top 25 Contributor
42 Posts
Points 485
Bruker Employee

Thanks Ben

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