Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email flinn@flinnsci.com

Goldenrod Paper—Demonstration Kit

By: The Flinn Staff

Item #: AP9868

Price: $16.95

In Stock.

When goldenrod paper comes in contact with a base, it changes to a dark red color. Write hidden messages, splash fake blood or just amaze your students with this great introduction to acids and bases.

See more product details

This item can only be shipped to schools, museums and science centers

Product Details

A beautiful demonstration to introduce students to acid–base indicators. The dye used in this special goldenrod paper acts as an acid–base indicator. When the paper comes in contact with a base, it changes from goldenrod to a dark red. Write hidden messages, splash fake blood or amaze your students with this great introduction to acids and bases. Instructions describe what bases to use and how to perform this demonstration so the paper is reusable. The best part is that carbon dioxide in the air will slowly change the red color back to goldenrod—just in time for your next class!

Concepts: Acid–base indicators, equilibrium.
Time Required: 15 minutes
Materials Provided: 100 sheets of reusable goldenrod paper.