Green chemistry

Green chemistry, also called sustainable chemistry, an approach to chemistry that endeavours to prevent or reduce pollution. This discipline also strives to improve the yield efficiency of chemical products by modifying how chemicals are designed, manufactured, and used. To help define a more specific research agenda, the 12 principles of green chemistry: Prevent waste wherever possible; Promote atom economy (that is, maximize the efficiency of production so that fewer by-products are made during the manufacture of the final product); Synthesize less-hazardous chemical by-products; Design safer, less-toxic chemical products; Use safer solvents and auxiliaries in chemical processes; Design energy-efficient chemical-manufacturing processes; Use renewable feedstocks; Reduce or avoid the production of derivatives; Use catalysts (most of which require fewer materials to carry out a chemical reaction); Design chemicals that break down into harmless products after they are used; Promote the development of real-time analysis of chemical products before hazardous substances can form; Promote inherently safer chemistry to prevent accidents from occurring.