Manganese dioxide

July 04, 2005
Image of Manganese dioxide

Burning brightly in 4th of July pyrotechnic displays is the powerful catalyst manganese dioxide. It is used in fireworks as an oxygen source for brighter lights and as a catalyst in whistling rockets. Versatile MnO2 is also used as a depolarizer in dry cell batteries and as a colorant in kiln-dried pottery.

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