We make strontium nitrate from strontium carbonate and nitric acid.
Strontium Nitrate is used as an oxidizer in some types of pyrotechnic compositions to give a brilliant red color. A well-known example is flares.
Actually making it is very simple. Just mix 45 grams of strontium carbonate, 100mL of water and 40mL of concentrated (15.6M) nitric acid and then boil down until it's dry.
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https://www.youtube.com/watch?v=_rd8b6wNnKA
Thanks everyone for 25000 subscribers.
To celebrate, I went to science rendezvous 2010 at the university of Toronto and here is a sampling of some of the experiments they had.
There is actually a LOT more than what was seen here but i wasn't able to get to everything in time.
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https://www.youtube.com/watch?v=QfSGa3qEAZc
In this video we make a silver oxide or silver zinc battery.
Related videos:
Restoring Silver by electrochemistry: https://www.youtube.com/watch?v=57iwtmT4LNQ
Toning Silver by Anodization : https://www.youtube.com/watch?v=GajkqaSr01c
Make zinc powder: https://www.youtube.com/watch?v=3X9c6epL7HQ
Make silver powder: https://youtu.be/WRgSviGuEFY
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https://www.youtube.com/watch?v=Eu88Qv6HuAQ
We make a Nuka Cola Quantum by following our original glow stick recipe and changing the dye to give us a deep blue color.
Check out original super-sized glowstick at: http://www.youtube.com/watch?v=mUCdGMeTveM
Since everyone is asking: NO YOU CANNOT DRINK IT! It's carcinogenic (causes cancer), and will kill both your kidneys and your liver.
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https://www.youtube.com/watch?v=hWuVhkwym5g
In this video we make a chemical thunderstorm in a beaker using manganese heptoxide.
I wanted recreate the test tube thunderstorm on a larger scale, adding sound for a more immersive experience. The setup involved using a glass funnel to carefully pour sulfuric acid into ethanol and form a layer of it in the bottom. Sprinkling potassium permanganate into the mix led to the formation of manganese heptoxide that reacted with ethanol and produced display of small explosions, accompanied by popping sounds and flashes of light.
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https://www.youtube.com/watch?v=ZxCO9BaBBHg
We demonstrate the simple combustive oxidation of iron by burning a common household item: Steel wool.
Normally we do not think of iron as being flammable, this is because bulk iron doesn't self-sustain its burning like most flammable materials. But the strands of steel wool are thin enough with enough surface area that heat produced is self-sustaining and will continue to burn through if there is enough air present.
To do this, simply pull apart and fluff up the steel wool to separate the strands. Then simply set it on fire. The steel wool should then burn flamelessly creating iron oxide.
You can also use a 9-volt battery and short out the terminals across the steel wool, the resistive heating should be hot enough to start it lit.
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https://www.youtube.com/watch?v=5MDH92VxPEQ
We show 10 ways to make PCB etchants using easy to access chemicals
1. Hydrogen Peroxide (5mL of 3%) and Hydrochloric Acid (5mL of 37%)
Loses strength in storage but makes copper chloride that can later be used as a fully recyclable etchant.
2. Hydrogen Peroxide (10mL of 3%) + Sulfuric acid (1mL of 98%)
Loses strength in storage but can be electrochemically recycled back into copper and sulfuric acid.
3. Hydrogen Peroxide (10mL of 3%) + Sodium Bisulfate (5g)
Loses strength in storage but can be electrochemically recycled back into copper and sodium bisulfate. Extremely slow but easier to make since sodium bisulfate is easy to obtain as pH control for swimming pools.
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https://www.youtube.com/watch?v=Q4tWEse2rDI
In this video i test Eucalyptol to see how it behaves in the sodium production reaction. I'm hoping to try and find a way to avoid dioxane.
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https://www.youtube.com/watch?v=lL6CDW49MTA
We make concentrated sulfuric acid from sodium metabisulfite, hydrochloric acid and an oxidant such as hydrogen peroxide or nitric acid.
Warning: The procedures in this video produce large quantities of toxic gases and deal with highly corrosive acids. All work must be performed in a fume hood with proper safety equipment. And all apparatus must be glass to withstand the acids.
Sodium metabisulfite upon reaction with acid will generate sulfur dioxide. This provides a convenient source of sulfur dioxide that is easier to handle than burning sulfur, but it is acceptable if you want to go that route. You'll just need to build a sophisticated gas capture and scrubbing system so the sulfur vapors and soot don't clog your tubes, poison your air and possibly burn down your workspace.
Sulfur dioxide is converted into sulfuric acid by reacting it with an oxidizer in water. In this case either hydrogen peroxide or nitric acid.
Industrially, sulfur dioxide is reacted with oxygen over a catalyst to make sulfur trioxide. This is cheaper but extremely difficult to do safely for the home chemist so the metabisulfite/oxidizer method is used instead.
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https://www.youtube.com/watch?v=okvvD3-DF9U