Reaction of Sugar and Chlorate




Do not grind or mix the sugar and potassium chlorate.  Potassium chlorate is a strong oxidizer.  Sulfuric acid is corrosive and toxic.

Chemicals and Solutions: 

1g ground sucrose

3g Potassium chlorate

conc. H2SO4


One Crucible

One eyedropper


Place a mixture of 1 gm sucrose and 3 gms potassium chlorate in the crucible.

Add one drop of sulfuric acid to the mixture. (The reaction starts immediately with smoke and it will then burst into purple white flames).



To schedule a demonstration, please send an email to the demonstration lab.



Eric Camp

Lecture Demonstration Technician

Bagley Hall 171

(206) 543-1606


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