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  Inorganic Chemistry

Borazine or Borasole or Triborine triamine ( B3N3H6 ) :

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It is a compound of B, N and H. It is a colourless liquid and is also called inorganic benzene.

                                  180oC
2B2H6 + 6NH3 ———→ 2B3N3H6 + 12H2.

It has a six membered ring of alternating B and N atoms, each is further linked to a H- atom.

Borazine.JPG

(vi) Boron nitride (BN)

It is prepared by treating BCI3 with an excess of NH3 and pyrolysing the resulting mixture in an atmosphere of NH3 at 750°C,

                                                                                  750oC
BCI3 + NH3 ——→ [ H3N ——→ BCI3 ] ——→ BN + 3HCI.
                                                                                Excess NH3

It is a colourless, good insulator, diamagnetic and almost unreactive solid.

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