1. GREEN CHESMISTRYBorja Fueyo Javier Arteaga Catarina Ferreira

2. DEFINITION Green Chemistry is the design of chemical products and processes that reduce or eliminate the use or generation of dangerous substances 3. ORIGIN In the 60th used to the liberation of the contaminants in form directly in the air, water and ground. Later, with the advance of the law and the knowledge of contaminants mechanisms in the environment they generated limits for the emission of contaminants in the environment. The most appropriate solution was the use of control teams of emissions that compliment the law. 4. PRINCIPLES The 12 Principles of Green Chemistry were published in 1998: 1. Prevent waste 2. Maximize atom economy 3. Design less hazardous chemical syntheses 4. Design safer chemicals and products 5. Use safer solvents and reaction conditions 6. Increase energy efficiency 7. Use renewable feed-stocks 8. Avoid chemical derivatives 9. Use catalysts, not stoichiometric reagents.10 Design chemicals and products to degrade after use 11. Analyse in real time to prevent pollution 12. Minimize the potential for accidents 5. BENEFITS Cleaner air: Less release of hazardous chemicals to air leading to less damage to lungs Cleaner water: less release of hazardous chemical wastes to water Plants and animals suffer less harm from toxic chemicals in the environment 6. BENEFITS Cleaner air: Less release of hazardous chemicals to air leading to less damage to lungs Cleaner water: less release of hazardous chemical wastes to water Plants and animals suffer less harm from toxic chemicals in the environment