Real, long lived, electronically neutral reagent chemical.
Gram formula weight (molecular mass) = 12.010
Melting point = 3827 °C
Boiling point = 4197 °C
Density = 2.62 g/cm3
Purity = 99 %
Solubility in organics = insoluble
Carbon exists in many allotropic forms: microcrystalline graphite, graphite, diamond as well as many types of "buckyball" and "buckytube".