1998 sulfonic acids sulfonic acids (acyclic compounds) P 0400 33 -120 A New SF 5 -Containing Solid Ether -Bis(β-pentafluorothio-βfluorosulfonyl-ethyl)ether. --(WINTER, R.; GARD, G. L.; MEWS, R.; NOLTEMEYER, M.; J. Fluorine Chem. 89 (1998) 1, 91-95; Dep. Chem., Portland State Univ., Portland, OR 97207, USA; EN)