Triflic Acid
Triflic Acid
(OP)
I need to apologize up front but I cannot get the search function to work on this site. I just get a blank screen.
I am looking for suitable materials for pumping triflic acid. I cannot find this acid in any chemical compatibility charts. Specifically, I want to know if EPDM is an acceptable elastomer.
I am looking for suitable materials for pumping triflic acid. I cannot find this acid in any chemical compatibility charts. Specifically, I want to know if EPDM is an acceptable elastomer.





RE: Triflic Acid
According to a Goggle search this a a "super" acid.
I can not tell you for certain what is a compatible elastomer.
But when I scan a Parker O-ring catalogue, EPDM has a low compatibility rating with most "acids".
I would be very cautious using EPDM.
For a good guess, Kal-Rez should work.
TFE or PTFE is certainly chemically compatible but some applications find the teflon "cold flow" objectionable.
RE: Triflic Acid
RE: Triflic Acid
I will take Yitbos advice and try kal-rez with an all Teflon AODP.
Thank you both for your advice.
RE: Triflic Acid
We have used Triflic Acid in small quantities as a catalyst in some of our processes. It is delivered to us in stainless steel kegs from the supplier and we repack it down to 1/2gal glass bottles.
I am interested to know if the Kalrez and Teflon hold up under pumping and/or tranfer conditions as we have considered some dosing operations in the past and were concerned about materials of construction.