The boundaries of the chemical industry, then, are somewhat confused. Its main raw materials will be the fossil fuels (coal, natural gas, and petroleum), air, water, salt, limestone, sulfur or an equivalent, and some specialized recycleables for special products, such as for example phosphates and the mineral fluorspar.
The chemical industry comprises the companies that produce industrial chemicals. Central to today’s world economic Air Compressor For Production Of Chemical Raw Materials china climate, 
it converts raw materials (oil, gas, air, water, metals, and nutrients) into more than 70,000 different items.