The boundaries of the chemical industry, then, are somewhat confused. Its primary raw materials are the fossil fuels (coal, gas, and petroleum), atmosphere, water, 
salt, limestone, 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 firms that Air Compressor For Production Of Chemical Raw Materials china produce industrial chemicals. Central to the modern world economic climate, it converts raw materials (oil, gas, air, drinking water, metals, and minerals) into more than 70,000 different products.