{TAIL ~ and a polyfluoroalkali metal or alkaline earth metal metalloid salt} of {HEAD ~ the formula}, 
{ TAIL ~ and a polyfluoroalkali metal or alkaline earth metal metalloid salt } of { HEAD ~ the formula } ,
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH