Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
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firewatch

A seemingly plain piece of paper is sprayed with an aqueous iron (III) chloride solution and a blood-red message appears!

Concepts

  • Complex Ions
  • Chemical Reactions
  • Chemical Change
  • Precipitates
  • Temperature