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Ward's® Freezer Flask Demonstration

Really Cool Chemistry

  • Perfect supplement to lectures
  • Can be performed in just 10–30 minutes
  • Requires only basic labware that you provide
With this kit, students can witness an endothermic reaction involving reactants in the solid state. They will mix together 2 solids, ammonium thiocyanate and barium hydroxide octahydrate, in an Erlenmeyer flask with a rubber stopper. They’ll then place the cold flask in a puddle of water on a board and, after several seconds, try to lift up the flask, only to discover that it has frozen to the board. The kit includes instructions and enough materials to repeat each demonstration 7 times.

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 Includes No. of Uses Unit Availability Price Quantity
470013-210 Ward's® Chemistry Freezer Flask Demonstration
Hazardous Product
Instructions 7 Each Retrieving


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