Name the Green Chemistry Principle

Question 1

It is better to prevent waste than to treat or clean up waste after it has been created.

Answer 1

Prevention

Question 2

Synthetic methods should be designed to maximize the incorporation of all materials used in the process into the final product.

Answer 2

Atom Economy

Question 3

Wherever practicable, synthetic methods should be designed to use and generate substances that possess little or no toxicity to human health and the environment.

Answer 3

Less Hazardous Chemical Syntheses

Question 4

Chemical products should be designed to affect their desired function while minimizing their toxicity.

Answer 4

Designing Safer Chemicals

Question 5

The use of auxiliary substances (e.g., solvents, separation agents, etc.) should be made unnecessary wherever possible and innocuous when used.

Answer 5

Safer Solvents and Auxiliaries

Question 6

Energy requirements of chemical processes should be recognized for their environmental and economic impacts and should be minimized. If possible, synthetic methods should be conducted at ambient temperature and pressure.

Answer 6

Design for Energy Efficiency

Question 7

A raw material or feedstock should be renewable rather than depleting whenever technically and economically practicable.

Answer 7

Use of Renewable Feedstocks

Question 8

Unnecessary derivatization (use of blocking groups, protection/ deprotection, temporary modification of physical/chemical processes) should be minimized or avoided if possible, because such steps require additional reagents and can generate waste.

Answer 8

Reduce Derivatives

Question 9

Catalytic reagents (as selective as possible) are superior to stoichiometric reagents.

Answer 9

Catalysis

Question 10

Chemical products should be designed so that at the end of their function they break down into innocuous degradation products and do not persist in the environment.

Answer 10

Design for Degradation

Question 11

Analytical methodologies need to be further developed to allow for real-time, in-process monitoring and control prior to the formation of hazardous substances.

Answer 11

Real-time analysis for Pollution Prevention

Question 12

Substances and the form of a substance used in a chemical process should be chosen to minimize the potential for chemical accidents, including releases, explosions, and fires.

Answer 12

Inherently Safer Chemistry for Accident Prevention