Carbides

Carbides: - The carbides are binary compounds in which carbon combines with the elements of lower or about equal electro negativity or in which carbon combines with elements which are more electropositive than three categories depending upon the type of bonding in them. These are salt like carbides, covalent carbides and interstitial carbides. All the three types’ carbides are obtained by heating the metal or its oxide with carbon or with hydrocarbon at very high temperature.

1. Salt like or ionic or electrovalent carbides.

2. Cavalent carbides.

3. Metallic, Interstitial or Refractory carbides.