Green chemistry is an approach that considers the entire life cycle of a chemical, from design to disposal.

 Green chemicals are chemical products and processes that are designed to reduce or eliminate the use of hazardous substances and have a low environmental impact. Green chemistry is an approach that considers the entire life cycle of a chemical, from design to disposal. 

Some examples of green chemicals include:

Green solvents

These solvents are used to replace hazardous solvents and have a low environmental impact. For example, ethyl lactate is a green solvent used in the paint industry that is derived from corn. 

Design for degradation

This involves designing products that break down into harmless substances after use. 

Catalysts

These can be used in small amounts to carry out chemical reactions efficiently. 

Reducing derivatives

This involves minimizing the use of derivative chemicals, which can create additional waste. 

The Twelve Principles of Green Chemistry, developed by Paul T. Anastas and John C. Warner in 1991, provide a framework for green chemistry innovation and design. Some of these principles include: 

Prevention

Atom economy

Less hazardous chemical syntheses

Designing safer chemicals

Safer solvents and auxiliaries

Design for energy efficiency

Use of renewable feedstocks

Reduce derivatives