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, sulfur or an equivalent, plus some specialized recycleables for special Air Compressor For Production Of Chemical Raw Materials china 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, drinking water, metals, and minerals) into more than 70,000 different items.