Tantalum(V) chloride
…between 170 and 250 °C. This reaction can also be performed using HCl at 400 °C. It can also be prepared by a reaction between tantalum pentoxide and thionyl chloride at 240 °C. Tantalum pentachloride is commercially available, however samples can be contaminated with tantalum(V) oxytrichloride (TaOCl3), formed by…