Green chemistry, also called sustainable chemistry, is a philosophy of chemical research and engineering that encourages the design of products and processes that minimize the use and generation of hazardous substances. The potential for green chemistry' is enormous for making the production processes and final products safer in a variety of sectors, and. to reduce waste and the use of toxic substances. At the same time, green chemistry can save companies money by reducing the need for costly chemicals, reagents and solvents, lowering insurance and legal costs, reducing waste disposal costs (which can exceed $5 per kg for some toxics) and saving energy. There at least three common elements with the potential for substantial environmental benefits and cost savings. 1,) Simplifying the overall process, reducing the number of steps, and hence the need for solvents and reagents and the attendant risks and energy use for heating and drying at each step 2.) switching to safer processes, frequently based on aqueous (water) solutions, instead of organic chemicals 3.) continuous process production with real time monitoring and control and recycling chemicals used in the process
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