Reddit reviews Atlas Glove 620 Atlas Vinylove 12" Double Dipped Gloves - Small
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High performance PVC GloveDouble dipped 12" PVCExceptional grip in wet conditionsInterlock liner, Extremely pliable, Ergonomic designIdeal for fishing industry, gardening, and water or petrochemical applications
Explosive Elephant Toothpaste!! edited to correct ingredient - and update notes
My goal was big, shooting foam steams! I tried other methods and recipes - but this worked best!
What is happening in elephant toothpaste: hydrogen peroxide is made up of two hydrogen and two oxygen molecules. This is one extra oxygen molecule than water. Hydrogen peroxide is very unstable; it keeps wanting to lose that extra oxygen molecule. In this experiment, we use potassium iodide as a catalyst to knock off that extra oxygen molecule very quickly, and soap to capture those molecules of oxygen in foam.
I tried this with two different flask types: 2L Erlenmeyer flask and 2L graduated cylinder.
For each flask I needed the following:
To get (my best approximation of) 4 molar KI, I put 35 mg of nearly-pure granular KI in a small glass measuring beaker, and filled it to 50 ml with cool tap water.
If you use smaller flasks, you will need to cut the ingredients by about 1/2.
I was able to buy the chemicals and all the flasks online. Please be careful with the hydrogen peroxide – it will burn your skin at this concentration.
The result is soapy water - but there may be some residual hydrogen peroxide. Simply rinsing the area well should be sufficient.
Steps:
Pre-make the KI solution, and measure out all other chemicals.
USING GLOVES AND EYE PROTECTION
-- Put 250ml H2O2 in each flask
-- Put ~25-30 ml of dish soap in each flask
-- Add a few drops food coloring of color desired (complicates clean-up - be warned!)
-- QUICKLY add 50 ml KI solution to each flask and jump back!
Notes:
The graduated cylinder produces a thick pillar of foam, the Erlenmeyer flask produces more of a jet.
The chemicals should be added by an adult.
If you film this, be sure to have the person filming stand back, and be prepared to capture an 8 to 10 foot jet coming out of the flask.
Shopping list (what I used):
This puts out a thick column of foam:
213I16 Karter Scientific 2000ml Glass Graduated Cylinder, Single Metric Scale https://www.amazon.com/dp/B006UKIBKU/ref=cm_sw_r_cp_api_8OuWxbG8YRB8N
This puts out a narrow/taller jet of foam - I now have three:
2000ml / 2L Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim https://www.amazon.com/dp/B00Q34D0HC/ref=cm_sw_r_cp_api_rQuWxb4708ZVJ
Pure Health Discounts Certified 35% Hydrogen Peroxide with 1 oz Bottle Dropper - 32 oz https://www.amazon.com/dp/B01AKIGJW4/ref=cm_sw_r_cp_api_YD4pzbZTGXC86
Potassium Iodide, High Purity Crystals, 99.8 % min., 100 grams https://www.amazon.com/dp/B008D8161I/ref=cm_sw_r_cp_api_PTuWxb0N94SZQ
Atlas Glove 620 Atlas Vinylove 12" Double Dipped Gloves - Small (they come in different sizes) https://www.amazon.com/dp/B002PJ0WRK/ref=cm_sw_r_cp_api_nUuWxbSQCV77N
Learning Resources Primary Science Safety Glasses (good size for kids) https://www.amazon.com/dp/B006ZLSWFI/ref=cm_sw_r_cp_api_SVuWxbBKKKD9R
Heathrow Scientific HD15909 Spatula with Flat End and Spoon End, 9" Overall Length (optional - but good for mixing the potassium iodide) https://www.amazon.com/dp/B0061OT1A4/ref=cm_sw_r_cp_api_qSuWxbA6R27C3