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Ward's® Chemistry Iodine Clock Demonstration

Use this sturdy apparatus for a visual demonstration of varying rates of reaction.
Simply fill the syringes (the entire lab takes five minutes to set up), then press the plunger board down and watch as the solutions in 10 beakers change one at a time from clear to deep blue. The more concentrated the solution, the less time it takes for each solution to change color.
Includes: syringe holder, plunger apparatus, syringes, stoppers, beakers and a teacher's guide. (Please note: Ring stand, sodium bisulfite, sulfuric acid, potassium iodate and soluble starch are required but not included.)

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 Lab Groups Unit Availability Price Quantity
470101-100 Ward's® Chemistry Iodine Clock Demonstration
5 Kit of 1 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


Item # Size Grade Description Form Unit Availability Price Quantity
470202-850 H-18331 - Support Ring With Cut-Out
- Each Retrieving

Support Ring with Cut-Out
Item # Description Size Unit Availability Price Quantity
470202-850 Support Ring With Cut-Out
3" (76 mm) Each Retrieving



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