... , lighter-water extinguisher etc Perfluoroalkylsulfonyl Quaternary Ammonium Salt Iodides (FC-134)CAS No: 1652-63-7Molecular formula: C14H16F17IN2O2SMolecular weight: 725.9Content ... agent, ductility agent, equalizing agent, lighter-water( water above FC-134) extinguisher, film coating agent, auxiliary-welding agent for electronic crest ...