Manufacturing Method of Tungsten Powder

The present invention provides a method a fine powder of tungsten powder, tungsten powder by dispersing in an aqueous solution containing an oxidizing agent to the surface of the particles of the tungsten powder to form an oxide film and the oxide film is removed with an alkali aqueous solution; providing a thin tungsten The method of producing the powder by the method comprising the step of powder having an average particle size of 0.05 ~ 0.5μm tungsten powder; and the provision of a tungsten powder having an average particle size of 0.05 ~ 0.5μm, and the average particle diameter d (μm), the true density M (g / cm3) and a BET specific surface area S (m2 / g) of the product (dMS) value within the range of 6 ± 0.8.


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