JCE Online Journal of Chemical Education
 | Subscriptions  | Software Orders  | Support  | Contributors  | Advertisers  | 

JCE Print
   Current Issue
 Previous Issues
 Supplements
 Search JCE Index

JCE Digital Library
   DigiDemos
 QBank
 SymMath
 WebWare

JCE Software
   Latest Releases
 Software & Video
 Downloads
 Support

Only@JCE Online
   JCE Online Store
 JCE HS CLIC
 JCE Discussion Forums
   Biographical Snapshots
 ChemEd Resource Shelf
 Featured Molecules
 Hal's Picks
 Project Chemlab
 Reviewed WWW Sites
 "Web-Ed" Articles

About JCE
   Features
 Publications
 Operations
 Outreach
 Contact Us


  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > February  >
In the Classroom
Tested Demonstrations
Red Shoe-Blue Shoe: An Acid-Base Demonstration with a Fashionable Twist
Calvin E. Uzelmeier III and Arthur C. Breyer
Michigan State University, Department of Chemistry, East Lansing, MI 48824
Cover
February 1998
Vol. 75 No. 2
p. 183
Abstract
This demonstration illustrates that acid-base indicators may come in many forms, and further exhibits the reversible effects which acids and bases may have on the colors of such indicators. The demonstration involves the dyeing of an object in an indicator, congo red, which causes it to change color from red to dark blue at pH less than 3.0 to 5.0. When the red object is submerged in an acidic solution which has been colored red, the object turns blue. When the blue object is submerged in a basic solution which has been colored blue, the object returns to its original red. Variations on these procedures are presented to make it appropriate for a wide range of ages and presentation styles.
More Information
*  Citation
 Uzelmeier, Calvin E., III; Breyer, Arthur C. J. Chem. Educ. 1998 75 183.
*  Keywords
 Demonstrations, Outreach, Dyes, and Acid-Base Chemistry
*  History
 Created:
Last Updated:		 June 28, 1999
June 23, 2005
<< Previous Article Table of Contents Next Article >>
  Home > JCE Print > Journal of Chemical Education > Issues > 1998 > February > Page 183


Subscriptions
 Subscription Info
 Order Forms

JCE HS CLIC

Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
 JCE HS CLIC

Contributions Welcome
JCE welcomes your submission
 Contributors' Corner

Advertisers
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
 Recent Advertisers

Be An Ambassador
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.
 Outreach with JCE

Comments to
jceonline@chem.wisc.edu		 Copyright © Division of Chemical Education, Inc., American Chemical Society.
All rights reserved.