Tungsten powder, min. 99 %, ca. 325 mesh, Molar mass (M) 183,84 g/mol, Density (D) 19,3 g/cm³, Boiling point (bp) 5660 °C, CAS No. [7440-33-7], UN-Nr. 3089, EG-Nr. 231-143-9, Empirical formula W