How pure can molybdenum powder become after hydrogen reduction?

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Molybdenum metal powder is produced through the hydrogen reduction of chemically pure molybdic oxide or ammonium molybdate (ADM).12

The process typically involves two stages, where the starting material is first reduced to a dioxide and subsequently to a metal powder. The purest molybdenum powder, which reaches a purity level of 99.95 percent, is obtained specifically through the reduction of ADM.2