Kesslivol

From Prison Break Wiki

A chemical that kills the odor of decomposition, used on the dead bodies in Sona. When heated it can corrode steel. An important part of Michael's plan to escape from Sona.

As there is no mentioning of Kesslivol on Wikipedia and all the websites with Kesslivol that Google finds also mention Prison Break, it is probably an imaginary chemical, made up for the TV series to fit its purpose.