3. Out line
• Definition
• Need of Green
chemistry
• Advantages
• Principles
• Conclusion
Out lines
4. Definition of green chemistry
“Generation of new products and its process that
reduce or eliminate the use or generation of
Hazardous material”
Chemical
Process
5. Why do we need
Green Chemistry
• New environmental problems
• Harmful unexpected side effects
• A famous example is the pesticide DDT.
6. Is there any
advantages…??????
Eco-friendly
Energy efficient
Less wastages
Fewer accidents
Safer products
Easier cleanup
Healthier work places
More efficiency
Lower cost of production and regulation
7. Principles of Green chemistry
• Waste Prevention
• Improve Atom economy
• Less hazardous chemical synthesis
• Designing safer chemicals
8. • Use Safer solvent & Auxiliaries
• Design for energy efficiency
• Design for Degradation
• Use of Renewable Feed stocks
• Avoid chemical derivatives
• Use Selective catalysts
• Real time analysis for pollution prevention
• Safer chemistry
9. Bhopal tragedy-A lesson in inherent
safe design
CH3NH2 + COCl2
CH3NCO
OCONHCH3
OH
ALTERNATIVE WAY
COCl2
OCOCl CH3NH2
MIC
targent
molecule
general synthesis
very dangerous
10. Hazardous solvent replace by eco-
friendly solvent
Organic solvents
• Highly toxic
• Volatile
• Flammable
• Not naturally occurring
• Expensive
• Harm
Water
• Non toxic
• Non volatile
• Non flammable
• Naturally occurring
• In expensive
• Safe
11. Green process
• Solvent free reactions
• Use Phase Transfer Catalysts
• Micro wave & Ultra Sound
assisted Green synthesis
