Chemical Compatibility

The High Efficiency Direct Drive TappingMode Fluid Probe Holder is made from the following materials that are exposed to the EC fluids. Ensure that the fluids used are compatible with these materials:

• Kel-F®
  
• Teflon®
  
• Platinum Iridium wire
  
• Glass
  
• Chemgrip adhesive (Saint-Gobain Performance Plastics)
• Viton (splash shield)

The TappingMode EC Probe Holder is made from the following materials that are exposed to the EC fluids. Ensure that the fluids used are compatible with these materials:

• Kel-F®
• Kalrez®
  
• Teflon®
• Platinum Iridium wire
• Glass
• Torr Seal

The ScanAsyst/Contact Mode EC Probe Holder is made from the following materials that are exposed to the EC fluids. Ensure that the fluids used are compatible with these materials:

• Kel-F®
• Kalrez®
• Teflon®
• Platinum Iridium wire
• Glass

The Dimension General Purpose Electrochemistry Cell is made from the following materials that are exposed to the EC fluids. Ensure that the fluids used are compatible with these materials:

• Kel-F® or Teflon (optional)
• Kalrez® or Viton® (optional)
• Glass

The surfaces that are exposed to EC fluids in the Dimension Electrochemistry Cell are made of Teflon.

Bruker has tested Kalrez, Kel-F, Torr Seal and glass with the following solvents (100% solution):

• Toluene
• Acetonitrile
• Ethyl Methyl Carbonate (EMC)
• Propylene Carbonate (PC)
• Diethyl Carbonate (DEC)
• Dimethyl Carbonate (DMC)
• Ethylene Carbonate (EC) + Dimethyl Carbonate (DMC) (1:1)

and found less than 1% change in mass over 3 days immersion.

The use of 100% Tetrahydrofuran (THF) is not recommended as it attacks Kel-F and Torr Seal. Use THF only as an additive.

Many solvents and their degree of compatibility with the fluid cell components are listed in the Compontent Chemical Compatibility Table.

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