A commodity chemical is a single substance or a chemical compound whose chemical structure is well-known, and their use is to create conditions for a process (such as acid, alkaline, oxidising, reducing, or solubilising conditions). They are produced in high volumes with low prices and do not have a brand name but are known by their common chemical names (for example acetic acid). The chemical structure and purity of two commodity chemicals produced by different manufacturers can be the same and can be interchangeable. They are generally sold on technical specifications (such as purity) and are not designed for a unique/special property or effect nor require any scientific research in their development. Usually, commodity chemicals either get reacted in the process (for example sodium hydroxide or sodium hydrosulphite) or remain in the effluent after the process (for example common salt or Glauber’s salt used in reactive dyeing of cotton). Please see the list available on Suppliers Roadmap to Zero for complete list of commodity chemicals.