The boundaries of the chemical industry, then, are somewhat confused. Its main raw materials will be the fossil fuels (coal, gas, and petroleum), air flow, water, salt, Air Compressor For Production Of Chemical Raw Materials china limestone, sulfur or an equivalent, and some specialized raw materials for special items, such as for example phosphates and the mineral fluorspar.

The chemical industry comprises the firms that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, drinking water, metals, and nutrients) into more than 70,000 different products.