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School science experiments
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Revision as of 02:30, 22 August 2014
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=Purple Flame Magic=
=Purple Flame Magic=
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==Materials==
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==Materials
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5g of pottassium permanganate cystals, 2ml of glycerol, a
5g of pottassium permanganate cystals, 2ml of glycerol, a
porcelain tile and a dropper.
porcelain tile and a dropper.
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==Procedure==
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==Procedure
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Pile 5g of powdered KMnO4 crystals on a porcelain tile.Make a small
Pile 5g of powdered KMnO4 crystals on a porcelain tile.Make a small
depression on the centre of the pile. Using a dropper or a glass tube add carefully
depression on the centre of the pile. Using a dropper or a glass tube add carefully
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After a few seconds a white puff of smoke is produced followed by sparks and purple
After a few seconds a white puff of smoke is produced followed by sparks and purple
flame.
flame.
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==Discussion==
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==Discussion
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This experiment demonsrtates spontaneous combustion. KMnO4
This experiment demonsrtates spontaneous combustion. KMnO4
oxidizes glycerol exothermically producing heat and light.
oxidizes glycerol exothermically producing heat and light.
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==Shared by/ Source==
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==Shared by/ Source
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Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Ranjani
3,913
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