Advertisement Remove all ads

Answer the following How will you illustrate the use of a safer solvent and auxiliaries? - Chemistry

Answer in Brief

Answer the following

How will you illustrate the use of a safer solvent and auxiliaries?

Advertisement Remove all ads

Solution

Use of safer solvent and auxiliaries:

This principle of green chemistry involves the use of a safer solvent and minimizing the total amount of solvents and auxiliary substances used for any given step of the reaction. This is because solvents and auxiliary substances make up a large percentage of the total waste created.

Illustration:

a. The main aim of this principle is to use green solvents. For example, water or supercritical CO2 in place of volatile halogenated organic solvents (such as CH2Cl2, CHCl3, CCl4) for chemical synthesis and other purposes.

b. Solvents as chemicals that dissolve solutes and form solutions facilitate many reactions.

c. Water is a safe benign solvent while dichloromethane is hazardous.

d. The use of toxic solvent affects millions of workers every year and has implications for consumers and the environment as well. Many solvents are used in high volumes and many are volatile organic compounds. Their use creates large amounts of waste, air pollution, and other health impacts.

e. Finding safer, more efficient alternatives or removing solvents altogether is one of the best ways to improve a process or product.

Concept: Principles of Green Chemistry
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Balbharati Chemistry 12th Standard HSC for Maharashtra State Board
Chapter 16 Green Chemistry and Nanochemistry
Exercise | Q 3.7 | Page 352
SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board 2021
Chapter 16 Green Chemistry and Nanochemistry
Long Answer Questions | Q 3.1
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×