Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Disappearing Rainbow Demonstration

Demonstrate the concepts of Indicators and Acids and Bases!

  • Students see reactions in real time
  • Combine colors to create all the colors of the rainbow
Three indicators are used in conjunction with acids and bases to create a rainbow of colors. In a basic solution, phenolphthalein is red, p-nitrophenol is yellow, and thymolphthalein is blue. If done correctly the students only see the acid or base being poured, which adds to the impressive display. There are enough materials to complete the demonstration 7 times.

Ordering information: Materials include Red Indicator, Orange Indicator, Green Indicator, Blue Indicator, Violet Indicator, Hydrochloric Acid 1.0N, Sodium Hydroxide 1.0N, Sodium Hydroxide 6.0M, Instruction Manual. Material Needed but not included: (6) Glass Beakers or Clear Plastic Cups (at least 250mL), Graduated Cylinder, 100mL Distilled or Deionized water. Materials needed but not included are (6) Glass beakers or clear plastic cups (at least 250ml), graduated cylinder, 100ml, distilled or deionized water.

Delivery information: Due to the nature of this item, it cannot be shipped by air under any circumstances. Please select ground shipping at time of checkout.



Item # Description No. of Uses Unit Availability Price Quantity
470221-810 Disappearing Rainbow Demonstration
Hazardous Product
7 Demos Each Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email


Need help?

  • Whatever you have to say, positive or negative, is important to us.
  • Providing feedback takes only seconds.
  • Your feedback will be made available to the public on the web. will publish your name as user.
You can use this name, or edit and save a nickname.
We recommend authors use their first and last initial.

Please confirm your profession

Example: Education

Please confirm your role

Example: Teacher

Please confirm your location

Example: New York, NY


Total Ratings: 0
Avg. Ratings: 0.0 out of 5

Sort all by:

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty