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Line 1: − <br><br>'''Materials'''+ − <br><br>'''Procedure'''+ Line 10:
Line 10: − <br><br>'''Discussion'''+ − <br><br>'''Shared by/ Source'''+
School science experiments (view source)
Revision as of 08:03, 22 August 2014
, 08:03, 22 August 2014no edit summary
=Purple Flame Magic=
=Purple Flame Magic=
<br>'''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.
<br>'''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.
<br>'''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.
<br>'''Shared by/ Source'''
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu