13 Nov elephant toothpaste without potassium iodide
Elephant toothpaste demo #1 (Catalyst: potassium iodide) This first video is a great introduction to Elephant Toothpaste – all of the ingredients are clearly labeled with captions. This experiment shows the catalyzed decomposition of hydrogen peroxide. 8 0 obj endobj
If you tried the activity without dish soap, the reaction probably will still made bubbles—but not foam. 24 0 R 25 0 R 26 0 R 27 0 R 28 0 R 29 0 R ] 1 /BBox [24 14 588 760] /Resources 11 0 R /Group << /S /Transparency /CS 30 0 R
endobj stream For this experiment our three key ingredients are hydrogen peroxide, dish soap and potassium iodide because all three work together to produce “explosive” results. 6 0 obj x+TT(T0 B3C#sK#��T�p�}�\C�|�@ �� Elephant’s toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide using potassium permangamate or potassium iodide as a catalysts. 40 /I true /K false >> >> x��۲��qfy��"oڬ8&l�9w��hFQ�)Q�mm�sQ(��.�@T�l����̼Ѭ���ȝEQ&�������Ϳl��9^����n�x7����z�l���������l����/��6��o�����6�+���o�O�����p�>>���[����������x�����ݑ;}x.
%��������� The elephant toothpaste reaction is just the speeding-up of a chemical reaction that usually happens very slowly. 7 0 obj ‘Elephant’s toothpaste’ reaction explained in slow motion. However, in this particular video they call the experiment “marshmallow experiment” rather than “elephant toothpaste”.
endobj endobj How rapidly the reaction proceeds will depend on the concentration of hydrogen peroxide.
<< /Type /Page /Parent 5 0 R /Resources 8 0 R /Contents 6 0 R /MediaBox [0 0 612 792] Hydrogen Peroxide, Dish Soap and Potassium Iodide, A Catalyst for Foamy Fun! - Catalyst: potassium iodide (can be used as a dietary supplement, so it’s safe) 4.Add 0.5-1 mL of saturated potassium iodide - Point out the steam formed from heat, water, and oxygen trapped in the bubbles - Looks like something you would use to brush and elephant’s tooth so it’s called “elephant toothpaste” 9 0 obj
14, 2016 , 3:00 PM. << /Length 10 0 R /Filter /FlateDecode /Type /XObject /Subtype /Form /FormType 4 0 obj
Why does the elephant’s toothpaste happen? Make Elephant Toothpaste.
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%PDF-1.3 Hydrogen peroxide (H 2 O 2) decomposes into water and oxygen gas, which is in the form of foam, but … It’s short, and clear and simple. A bubbly science project from Science Buddies. Hydrogen peroxide ― that antiseptic liquid that usually comes in a brown bottle and bubbles up when you put it on a cut ― is a chemical compound that's made of two hydrogen and two oxygen molecules bonded together. endstream Elephant's toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide using potassium iodide or yeast and warm water as a catalyst. << /Length 7 0 R /Filter /FlateDecode >> 12 0 obj Potassium iodide, 1.5 g 1 large garbage bag or large tray Weighing boat 2 plastic bottles or large graduated cylinder [V T3 100-mL graduated cylinder Digital balance Spatula ;PTLY VUSPUL ZTHY[WOVUL VY Z[VW^H[JO Safety goggles Gloves HELPFUL LINKS Chemistry Activity Video: Elephant Toothpaste Motivate Students with By Devi Shastri Jun.
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