in gas

ethanol; ammonia in benzene byproducts: NH4Cl; TaCl5 was treated with ethanol in benzene in presence of excess NH3, the NH4Cl was separated, the filtrate was evaporated under reduced pressure;; distillation under reduced pressure;;

LiCl in ethanol Electrochem. Process; dry Ar atmosphere; anodic oxidation of Ta in LiCl2 soln.; distillation;

in ethanol Electrolysis; anodic dissolution of the metal in anhyd. alcohol in presence of LiCl assupporting electrolite; EtOH was evapd. from resulting electrolyte, the Ta(OEt)5 was extd. from residue with hexane, on prolonged storage of liquid crude Ta(OEt)5 the second Ta-Li complex crystllized in minor yield; elem. anal.;