Antimony trifluoride is the inorganic compound with the formula SbF3. Sometimes called Swarts' reagent, is one of two principal fluorides of antimony, the other being SbF5.
Antimony trifluoride (SbF3), commonly referred to as Swarts' reagent, is a key inorganic compound with the formula SbF3.  It is one of the primary fluorides of antimony, alongside SbF5.