DEFINITION OF GREEN OR 
    SUSTAINABLE CHEMISTRY
 • An  approach  to  design,  manufacture 
  and  use  of  chemical  products  to 
  deliberately  reduce  or  eliminate  the 
  chemical  hazards  and  protect  the 
  environment.
  Basic Principles of Green Chemistry
  • 12 principles advocated by Dr. Paul Anastas 
   and Dr. John Warner.
  1. Prevention
  2. Atomic Economy
  3. Less Hazardous Chemical Synthesis
  4. Designing Safer Chemicals
  5. Safer Solvents and Auxiliaries
  6. Design for energy efficiency
  7. Use of Renewable Feedstocks
  8. Reduce Derivatives
  9. Catalysis
  10. Design for Degradation
  11. Real –Time analysis for Pollution prevention
  12. Essentially Safer Chemistry for Accident 
   Prevention
       1. Prevention
  • It is better to prevent waste than to treat 
  or clean up waste after created it.
  • So, waste prevention is better than waste 
  cleanup.
           Environmental Disasters
 • Love Canal
 In Niagara Falls, NY a chemical and plastics company had used an old 
 canal bed as a chemical dump from 1930s to 1950s. The land was then 
 used for a new school and housing track. The chemicals leaked through 
 a clay cap that sealed the dump. It was contaminated with at least 82 
 chemicals (benzene, chlorinated hydrocarbons, dioxin). Health effects 
 of the people living there included: high birth defect incidence and 
 seizure-inducing nervous disease among the children.