Reddit reviews Heathrow Scientific HD15909 Spatula with Flat End and Spoon End, 9" Overall Length

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:

• 250ml 35% H2O2 (hydrogen peroxide)
  
• 50ml 4 molar KI (dry, granular potassium iodide)
  
• a bit of dish soap
  
  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
  

I like my lab spoon/spatula.

Sturdy, long and cheap.

http://www.amazon.com/gp/product/B0061OT1A4/ref=oh_details_o05_s00_i00?ie=UTF8&psc=1

edit: To avoid confusion. Both ends of this tool are flat. It works fine for stirring and scooping sugar or jams for example but it doesn't have a true concave spoon on it. FYI.

Homebrew Materials:

Vacuum Pump Oil

Vacuum Tubing

1/4" Barb x 1/4" NPT Male Hose Fitting

1/4" Male x 1/4" Female NPT Extension Hose

Vacuum Pump

Filters

Spatulas

Magnetic Stir Bar

Digital Hotplate with Magnetic Stirrer

Nitrile Gloves (Better than Latex)

Empty Capsules (Buy Separated unless you hate your life)

Capsule Machine (If you value your sanity, buy more than a 100... I hated my life doing this)

Mohr Pipets

Pipette 10ml

Mortar and Pestle (If you're doing orals, get this... Otherwise, you're playing Russian Roulette with your doses and liver)

Funnel (For pouring into small places)

Alconox (For clean your shit)

Temperature Gun (How hot is my shit?)

Graduated Cylinder (If you measure with beakers, you're a fucking idiot... And you should consider Volumetric Flasks)

Beaker Set

1 Liter Beaker (Because brewing en'masse is better)

Scale (I have a 2kg one, too)

Calibration Weight Set

Calibration Weight 100g (Because you need two for the scale linked)

Vacuum Regulator (Unless you want to filter 9001 times due to broken shit)

Oil (Any USP grade, filtered or unfitlered)

BB

BA

Butyl Stoppers

Flip Top Seals

Crimper

Vials (Unsealed)

Autoclave (Cheaper than an oven, why are you using an oven?!)

Weight Boats (Buy a million of these. They're cheap and useful)

Did I miss something? Probably. Yes.

For weigh boats I use these, work perfectly. And to round out your weighing arsenal, one of these for smaller loads, and one of these for the larger ones.

Cheap scale that does the job.http://www.amazon.com/American-Weigh-GEMINI-20-Portable-MilliGram/dp/B0012TDNAM

Buy 00 capsules-easier to pack.
http://www.amazon.com/Now-Foods-Veg-Capsules-Capsules-250-Count/dp/B000OSQS4U

And then get a spatula if you need one to pack and so your hands don't get sticky.
http://www.amazon.com/Heathrow-Scientific-HD15909-Spatula-Overall/dp/B0061OT1A4