in neat (no solvent) careful exclusion of moisture; freshly prepared CoF3 (from F2/CoCl2); vac.; shaking; reaction starts at ambient temps.; heating to 120°C (2h); discoloration to light red marks end of reaction;; condensed (liquid air); fractionate distillation (removal of SF6);;
in neat (no solvent) careful exclusion of moisture; vac.; shaking; reaction starts at ambient temps.; heating at 120°C (2h);; condensed (liquid air); fractionate distillation; further byproducts: low sulfur fluorides;;