Properties: Metallic Black metallic
powder with metallic luster (BCC crystal);
Solubility: Dissolved mixed acid
of nitric acid and hydrofluoric acid;Melting with mixture of
sodium hydroxide and sodium carbonate;Slightly soluble in nitric
acid, sulfuric acid, and aqua regia;Insoluble in water,
hydrofluoric acid and potassium hydroxide;
