1 Reply Latest reply on Nov 17, 2011 10:43 AM by Wytze Meindersma

    Are ionic liquids truly green ?

    Stanley Seelig

      My question is targeting the anion part of the molecule when it is heavy in halides (i.e., AlCl4(-), FeCl4(-), BF4, PF6, etc).  Are these safe to handle?

        • Re: Are ionic liquids truly green ?
          Wytze Meindersma

          With the ALCl4(-) and FeCl4(-) anions, you have to avoid contact with water. HCl will be generated.

          The BF4 and PF6 containing anions are safe, but especially the PF6 anion can generate HF at higher temperatures. We have no experience with PF6 containing ILs

          We have used [4-mebupy]BF4 at 80 °C during a prolonged time in our pilot plant, and we did not see any sign of corrosion in our equipment. The IL remained stable, although coloration occurs.