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Sulfur Clock Student Laboratory
Sulfur Clock Student Laboratory

Product NameSKUPriceQty
Lab Activity, Rate of Reaction, Sulfur Clock, Student Apparatus, TD/CT
This item is restricted, it only ships to registered educational institutions.
WW46146M01
 $57.25 
Hydrochloric Acid, Reagent ACS, Solution, Concentrated (12 M, 37%), 500 mL Bottle MSDS: Click here

This item is restricted, it only ships to registered educational institutions.
WW97030M06
 $23.95 
Sodium Thiosulfate 5-Hydrate, Laboratory, Crystal, 500 g Bottle MSDS: Click here

This item is restricted, it only ships to registered educational institutions.
WW94357M06
 $10.40 




Product Information

Designed for use at one workstation, this apparatus lets students do hands-on experiments to learn about rates of reaction. Using three different concentrations of reactants at a time, students prepare reagents and press the plunger. Students record how long it takes for an “X” on a piece of paper under the beaker to disappear, as sodium thiosulfate reacts with hydrochloric acid to produce sulfur, a cloudy precipitate. Finally, students graph the time it takes for the X to disappear vs. the concentration of the solution. Includes a teacher’s guide. Please note: Hydrochloric acid, sodium thiosulfate, a ring stand and a stopwatch or clock are required, but not included.

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