The indirect fluorination of some fluorocarbon nitrogen compounds has been investigated and reactions of the following functional groups have been determined under mild conditions:-K:= C<, NIC-, c-(-N= C<) 3,> KH,> NCOF,--N= C= O,-NHCOF,-CONH:! and- CONHCO--. Fluorocarbon KF compounds can be synthesized in certain cases by the action of silver difluoride on carbon-nitrogen unsaturation, by replacement of amine hydrogen or ...