Legal Notice:

     This website provides instructions for the generation of gases on a microscale level along with instructions for chemical demonstrations and student laboratory experiments with the gases.  This site is designed for use by chemistry teachers at the high school and university level.  Students and other interested readers are welcome to visit the site to learn more about chemistry but are hereby advised not to perform or attempt to perform any of the instructions provided herein without proper supervision by someone qualified and competent in chemistry.  Be advised that irresponsible use of chemicals may cause injury and may be unlawful in your area.

     USA Copyright 2000, 2017.  All rights reserved.  No part of this website may be reproduced or transmitted in any form or by any means, electronic or mechanical, without written permission from the website owner, Bruce Mattson (eMail: brucemattson@creighton.edu).  For classroom use by teachers, one copy per student in the class may be made free of charge and without further permission.  For all others, one copy may be made without further permission.

     Individuals using this website and performing the experiments described herein accept full responsibility for all that results directly or indirectly from these activities.  Bruce Mattson, all co-authors and Creighton University shall be absolved of any and all responsibility for the result of activities conducted from information and instructions provided in this website.

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Download our ozone article that appeared in Chem13 News, January, 2007.

Download our article on ozone treatment of bacteria in natural waters submitted to Chem13 News September, 2007.

Photo gallery (photographs with brief explanations):

Part 1. Setting up equipment.

Part 2. Ozone + potassium indigo trisulfonate experiments and results

Part 3. Ozone + potassium iodide experiments and results

Part 4. Optimizing ozone generating conditions

Part 5. Food coloring experiments and results

Part 6. EPA method, "Determination of Ozone by Ultraviolet Analysis"

Part 7. Ozone and other foods, household substances and office supplies

NEW! (September 2007) Part 8. Treating natural water samples with ozone to kill bacteria and coliform.