Green Chemistry Principles
Calculate atom economy and compare different synthesis routes
Select Synthesis Route
Traditional Ethylene Oxide Production
The chlorohydrin process produces significant waste (CaCl₂ and H₂O).
Reactants
C₂H₄ (28)
Cl₂ (71)
Ca(OH)₂ (74)
Products
C₂H₄O (44)
CaCl₂ (111)
H₂O (18)
Atom Economy Rating
25%
Low Efficiency / Wasteful
DSE Green Chem Highlights
Definition
Green chemistry aims to reduce or eliminate the use and generation of hazardous substances through improved processes.
12 Principles (Key)
- Prevention of waste
- Atom economy
- Less hazardous chemical syntheses
- Use of catalysts
- Use of renewable feedstocks
Note: 100% yield does not mean 100% atom economy. Atom economy measures how many reactant atoms end up in the desired product.