Chapter 18, Problem 60E

Interpretation Introduction

Interpretation:

The use of supercritical ${\text{CO}}_{\text{2}}$ is a good example of a green chemical reaction is to be explained.

Concept introduction: A supercritical fluid is defined as the substance that has properties of both a gas and a liquid. The substance whose distinct liquid and gas phases do not exist above its critical point is said to be supercritical fluid. The supercritical solvents replace conventional solvents because of their better properties. Water and ${\text{CO}}_{\text{2}}$ are the two most popular supercritical solvents.

To determine: The reason for the use of supercritical ${\text{CO}}_{\text{2}}$ as a good example of a green chemical reaction