Contact Information

  • Liz Gron
  • Assoc. Professor
  • Chemistry
  • Hendrix College
  • 1600 Washington Avenue
  • Conway, AR 72032
(501) 450 - 3811

Greening Dry Cleaning

Module (PDF)

Author Contact:


This end of chapter module outlines the current methods of nonaqueous cleaning procedures while comparing the standard solvent perchloroethylene (PERC) to risk decreasing innovations employing supercritical carbon dioxide(SCO2).

PERC is a nonpolar solvent used to dissolve hydrophobic greases and oils. Unfortunately this chemical is associated with soil contamination and long-term health consequences, being labeled a potential occupational carcinogen. As a viable alternative, supercritical carbon dioxide is being used in conjunction with specially constructed detergents to minimize risk and provide a greener solvent for the dry cleaning industry.

This module is one of nineteen end-of-chapter modules that integrate green chemistry with specific chemistry concepts within each chapter. This module includes four web investigations and three separate exercises focused on communicating findings using a variety of reporting strategies. This material included in chapter 17 entitled "Household Chemicals: Helps and Hazards."

Summary prepared January 2008 by Richard Craig Timmerman and Dana Garves, University of Oregon.


Hill, J. W.; Kolb, D. K. Chemistry for Changing Times, Print 2007; pp 546-547.

Category Descriptors

Chemistry Concepts
  • Alkenes
  • Industrial Chemistry
  • Solutions/Solvents
  • Toxicology
Green Chemistry Principles
  • Design Less Hazardous Chemical Syntheses
  • Design Safer Chemicals and Products
  • Minimize the Potential for Accidents
  • Prevent Waste
  • Use Renewable Feedstocks
  • Use Safer Solvents/Reaction Conditions
Chemistry Subdiscipline
  • Environmental Chemistry
  • Organic Chemistry
Target Audience
  • Colleges/Universities
  • General Public
  • Secondary Schools
  • Books