Carbon black has been called the king of pigments with good reason. It is the most permanent, has the smallest particle size, the greatest opacity and the greatest tinting strength. It is also the most difficult to disperse. Birla carbon black is made by one of the following method.
Furnace Black - made by burning gas, oil or a mixture of these in a furnace under controlled conditions. The smoke (carbon) is removed from the stack gas by electric precipitation and is collected.