@jauhar123 | Posted 02 May. 2019
Chemicals are essential materials for many modern industries. Hence, the chemical industry is considered as one of the key industries. Proper and organized development of this industry needs a higher practical skill of science, laboratory experiments, sufficient capital expenditure and a considerably large industrial demand for chemicals.
Chemical products are sub-divided into nine main groups : Heavy chemical including electro-chemicals, Coal-tar chemicals, Derived chemicals, Explosives, Chemical fertilizers, Plastics, Petrochemicals, Drugs and medicines, Insecticides. However, all the chemicals produced by the chemical industries can be broadly classified into three major categories according to the commercial standards. They are commodity chemicals, specialty chemicals, and fine chemicals.
Commodity chemicals are chemicals that are produced in large quantities. In general, their applications can be traced back to their chemical structure for their production in bulk. Specialty chemicals are constituted or prepared by a mixture of different chemical substances which are designed and produced in order to be used for a specific application.
Fine chemicals are chemical substances that are characterized by their chemical structure. However, unlike commodity chemicals, fine chemicals are produced in small quantities. They can also be used as components in the formulation of specialty chemicals.