Best products from r/chemicalreactiongifs

I don't know much about who sells / ships keyboards in the UK - I think you'd have to pay an unreasonable amount of shipping from the places I normally get keyboards from - so I've just compiled a few options from Amazon for you to check out.

In general, I'd recommend blue switches if you don't mind noise and want tactile feedback - but even the non-tactile reds (light) and blacks (a little heavier) clack when they bottom-out. Browns also have a small tactile bump without the click, but that bump is less pronounced. (There are many other options, but many of those aren't easily available off the shelf.)

While some generics aren't as good as genuine Cherrys, many are - and even the "worst" generics are still better than rubber domes.

My favorite brands are Filco, Leopold, and Ducky - but those usually scrape just (or much) above the £100 mark in the UK from what I can tell. Worth poking around for though, I think.

I believe Corsair and a few others have boards with numpads that delete the arrow keys instead as a possible space saving option.

Anyhow - here are a few possible options to kick off your search:

https://www.amazon.co.uk/gp/aw/d/B01CS99IYE/ref=mp_s_a_1_128?ie=UTF8&qid=1517949116&sr=1-128&pi=AC_SX236_SY340_QL65&keywords=mechanical+keyboards&dpPl=1&dpID=51PIgj4mxEL&ref=plSrch

• Non-tactile switches (generic blacks)
  
• US layout
  
• Does have numpad
  
• Novel look (alu / white)
  
• Backlit (orange, I think)
  
• £39.99 w/ free shipping
  
  ---
  
  https://www.amazon.co.uk/gp/aw/d/B015MQH59A/ref=mp_s_a_1_135?ie=UTF8&qid=1517949450&sr=1-135&pi=AC_SX236_SY340_QL65&keywords=mechanical+keyboards
  
  
• Tactile clicky switches (generic blues)
  
• US layout
  
• Does have numpad
  
• Novel look (alu / white)
  
• Backlit (blue)
  
• £46.99 w/ free shipping
  
  ---
  
  https://www.amazon.co.uk/gp/aw/d/B01N7VS653/ref=mp_s_a_1_171?ie=UTF8&qid=1517949846&sr=1-171&pi=AC_SX236_SY340_QL65&keywords=mechanical+keyboards
  
  
• Various switch options, genuine Cherry brand
  
• UK layout
  
• Does have numpad
  
• Black, but comes with some extra red keys
  
• Backlit (red)
  
• £99.99 depending on switch type, free shipping
  
  Feel free to PM and let me know if you have any specific questions along the way - and happy clacking!
  
  r/mechanicalkeyboardsuk is a great resource as well - those folks are sure to have more UK specific knowledge.
  

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
  

Pure silver wouldn’t “rust” per se, but electroplated nickel steel (EPNS) items could.

So, we have display items from the 1800s at work, proper silver that has been hallmarked.

If there is a considerable amount of issues with an item, a soft toothbrush and a bit of elbow grease dipped in
silver polish cream will remove most of the patina (we like our silver shiny). To remove the additional polish that sticks into the nooks and crannies (the excess polish dries dull pink to be easily seen), dip the toothbrush into
silver dip
(different tubs for display and food service items!) and scrub off the dried up polish. Buff with a soft cloth (we use ripped up old cotton bed sheets as rags).

The use of gloves and a face mask is always greatly encouraged, especially the latter when you’re removing the dried polish, becomes a fine dust.

Food service items, we’ll silver dip in a tub (again different bottles for food and display), then immediately wash in running water. We may use a soft sponge to scrub it a bit. If there is a spec of rust through the EPNS, we’ll clean that off with a
Brillo Pad
very lightly; you will cause some fine micro scratches to the plating around the rust, but it’ll just remove a fine layer.

NOT TO BE USED ON DISPLAY ITEMS!

I’ve had a group of over zealous lads come through before and pour a bit of silver dip into a silver ice bucket from 1870s before, then leave it in the Silver Store. Since it wasn’t a piece that was regularly rotated for display, we didn’t realise that it was full with dip for the better part of a few months. Couldn’t smell it either, since the store smelled of polish. When we did find it, it was as expected, but with crystals everywhere. Turned a sludgy black too. The acid in the dip actually burned through the silver, so that was totally lost.

To remove the crystals, a screwdriver, hot water, and a few hours of chipping and scrubbing may have been involved. Externally the ice bucket is still display worthy, just don’t look inside.

Once the silver plate is lost, it’ll be just a base brassy yellow colour in that spot. I’ll try to find an example at work later.

We regularly dip our EPNS cutlery at least once or twice a week; after through washing (especially if egg yolk has been involved), open a jar and just dip the fork tines in, less than 2 seconds is enough, if you want to swirl it around you can too, until the tarnish is removed, then wash in running water.

I'm currently reading Oliver Sach's book Uncle Tungsten.

For a less violent experiment, try mixing Iodine with either Zinc or Antimony.

>If I added two or three drops of water to the mixture, it would catch fire and burn with a violet flame, spreading fine brown iodide powder on to everything.

He has particular fascination for the purple cloud emitted from these reactions.

>With chemistry such as this, one was playing with fire… huge energies, plutonic forces, were being unleashed, and I had a thrilling but precarious sense of being in control — sometimes just. This was especially so with the intensely exothermic reactions of aluminum and magnesium; they could be used to reduce metallic ores, or even to produce elemental silicon from sand, but a little carelessness, a miscalculation, and one had a bomb on one's hands.

This (and many other) fascinating chemical reactions can be made with seemingly-inert elements. The book goes in to great description on many wonderful experiments, including most of the atomic theory development through the late 17th to early 20th century chemists' discoveries.

>One could put magnesium in cold water, and nothing would happen. If one put [just] it in hot water, it would start to bubble hydrogen; but if one lit a length of magnesium ribbon, it would continue to burn with dazzling brilliance under the water, or even in normally flame-suffocating carbon dioxide.

All quotes from the chapter "Stinks and Bangs" Uncle Tungsten by Oliver Sachs (author of The Man Who Mistook His Wife for a Hat).

I work in a shop where sheet metal is readily available, and scrap is ok to use for whatever we want.

A 120v muffin fan came into my possession by means I do not remember. I glued a neodymium magnet from a dead hard drive to the fan, and built an enclosure to which I mounted the fan, and a 120v dimmer switch to control the speed of said fan.

I then purchased stir bars, to stir the starter in a 2 liter Erlenmeyer flask.

I bought a dimmer switch at Home Depot, and I get an amazing turbination in my starters.


The result is an inexpensive alternative to commercially available stir plates.

Paid $45.00 for the flask, $7.00 for the switch, maybe $9.00 for the stir bars, but the satisfaction of seeing the thing work, and work well, was so validating and fun to do!

If it can be fluffy Instant snow (just one example link, there are probably hundreds) (Chemical name: sodium polyacrylate) might work. It's the same stuff that in diapers and expands significantly with water. As a bonus I'm pretty sure you can used colored water to end up with dyed "snow"

This is getting pricey:

Solution A:

• Potassium Iodate $40 (this is for 100g and the video calls for 43g).
  
• Sulfuric acid $20 I don't think this is concentrated enough to do the trick. This might be a showstopper since, even if I could get ahold of a higher concentration, I've heard too many horror stories about working with undiluted sulfuric acid that I may just want to pass.
  
  Solution B:
  
  
• Corn Starch $8
  
• Malonic Acid $10
  
• Manganese Sulfate Monohydrate $15
  
  Solution C:
  
  
• Hydrogen Peroxide $17
  
  
  And distilled water is a couple bucks per gallon at the grocery store. Looking at around $100, and that is assuming I get all the ingredients right the first time and don't have to reorder any of this and ruin some of my ingredients in the process. Many of the ingredients will have leftovers, but the potassium Iodate seems pretty expensive for such a small amount that I'll use half of just to make one batch.
  
  EDIT: Not too surprisingly, it seems like the acids and peroxides I've listed may not be nearly concentrated enough to do the trick.
  
  EDIT2: Updated hydrogen peroxide link to a 35% concentration instead of first aid style which is 2-3%.

I just did a quick search and they actually have it on amazon. Here. It has free shipping if you have amazon prime. lol

Sodium Chlorate by the KG

Giant Gummy Bear

Good luck, God speed.

Amazon is your friend.

I received one as a gift. If it tasted like a Haribo gummy bear, it would be amazeballs. Unfortunately it tastes like ass; it's too chewy and there's not enough good flavor.

5 lbs of Haribo gummy bears, that's what you should get.

And a link to amazon for those wanting one: http://www.amazon.com/Popin-Cookin-Happy-Sushi-House/dp/B004N8LMFM/ref=sr_1_1?ie=UTF8&qid=1369025388&sr=8-1&keywords=sushi+candy

Here you go

you buy this stuff http://amzn.com/B000FA6APE

http://www.amazon.com/Popin-Cookin-Happy-Sushi-House/dp/B004N8LMFM/ref=sr_1_5?ie=UTF8&qid=1367627235&sr=8-5&keywords=Kracie