PROPIEDADES:

                                                                                                                                                                                                                                                                     Colour: gray to black

            Appearance: crystalline solid

            Melting point: 535°C (decomposes, loses O₂)

         Boiling point:

            Density: 5100 kg m^-3

            Es un intenso agente oxidante, pero es poco reactivo porque su energía de red es

           muy alta.