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