5198 °F at 760 mmHg (NTP, 1992)
2,927 °C
2870 °C
5612 °F
Density
8.9 at 68 °F (NTP, 1992) - Denser than water; will sink
8.9 g/cu cm at 20 °C
8.9 g/cm³
8.92
Physical Description
Cobalt appears as a black powder.
Dry Powder, Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals, Other Solid; Dry Powder; Water or Solvent Wet Solid; Other Solid; Dry Powder, Other Solid
Odorless, silver-gray to black solid; [NIOSH]
SILVER-GREY POWDER.
Odorless, silver-gray to black solid.
Appearance
Gray metal, hexagonal or cubic
Silvery bluish-white metal
Gray, hard, magnetic, ductile, somewhat malleable metal
Steel-gray, shining, hard, ductile
Face centered cubic above approximately 417 °C