Sugar charcoal

Sugar charcoal is formed by the destructive distillation of cane sugar. It is also prepared by the dehydration of sugar in the presence of concentrated sulphuric acid (H2SO4). Since sulphuric acid is a dehydrating agent, it absorbs water from the sugar and leaves behind black residue of carbon. It is the purest form of amorphous carbon.
Uses of Sugar Charcoal.
Sugar charcoal is used to prepare artificial diamonds. When heated strongly at high temperature (3000 °C-3500 °C), it is converted into an artificial diamond. It is used as a reducing agent in the process of extraction of metals. It can also be used as a decolourising agent, and as a reducing agent.