The boundaries of the chemical industry, then, are somewhat confused. Its main raw materials will be the fossil fuels (coal, natural gas, and petroleum), atmosphere, drinking water, salt, limestone, sulfur or an equivalent, plus some specialized recycleables for special products, such as phosphates and the mineral fluorspar.

The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts recycleables (oil, gas, air, drinking water, metals, and Air Compressor For Production Of Chemical Raw Materials china nutrients) into more than 70,000 different products.