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Two-hafnium electroreduction steps are related to two electrochemical reactions, according to a study of hafnium cathodic and anodic reactions in chloride melts containing HfCl4 in chloride melts. It was found that the deposition of NaCl-K 2 HfF 6 melt at the anodic current density of > 0. 02 A2219cm -2 was preceded by the development of Hf fluoride complexes and Hf chloride complexes.
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