The overall purpose of Green Chemistry is to reduce pollution, with normal chemistry you mix your chemicals together to make your product, which can be potentially hazards or the waste can be, but with green chemistry if you ever have to deal with those hazards you need to manage exposures to the, in green chem, a hazard is the first point of interest when analyzing your problem. You may have heard of green chemistry in another term "sustainable chemistry". With all this, green chem is there to make chemistry my efficient and effective with the real world problems. Green chem isn't simply just cleaning up pollution though it removes pollution at its very nature by eliminating hazards in the reagents, solvents, and products.
Green chem has 12 basic principles these are:
Prevent waste: Berkeley W with BWC Pharma Consulting said "It is better to prevent waste than to treat or clean up waste after it has been created."
Maximize atom economy: is the idea of not wasting any of the atoms in your reactants that transfer into your solution
Design less hazardous chemical syntheses: When creating substances, if it is feasible then the product should not be designed to possess any toxicity to the environment or human health
Design safer chemicals and products: The act of preserving the efficiency of the product while reducing toxicity
Use safer solvents and reaction conditions: Making auxiliary substances unnecessary (if possible) and not harmful when used.
Increase energy efficiency: When going through the chemical process the energy should be used efficiently as they can have effects on the environment and or economic impacts
Avoid chemical derivatives: The use of similar chemicals should be used...