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School science experiments (view source)
Revision as of 02:30, 22 August 2014
, 02:30, 22 August 2014no edit summary
=Purple Flame Magic=
=Purple Flame Magic=
==Materials==
====Materials====
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.
==Procedure==
====Procedure====
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
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.
==Discussion==
====Discussion====
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.
==Shared by/ Source==
====Shared by/ Source====
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
