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How to galvanize metal (for rust protection)
We show you how to galvanize metal objects to protect them rust.
First we get 30g of zinc sulfate and dissolve it into 100mL of water.
Zinc sulfate was made back in our video on making a copper sulfate and
zinc battery: http://www.youtube.com/watch?v=Id3tL2iI0Vw
Then connect the item you want to galvanize to the negative terminal of a 5 volt power supply. Connect the positive terminal to a strip of zinc metal.
...
https://www.youtube.com/watch?v=jimPImGKPy8
First we get 30g of zinc sulfate and dissolve it into 100mL of water.
Zinc sulfate was made back in our video on making a copper sulfate and
zinc battery: http://www.youtube.com/watch?v=Id3tL2iI0Vw
Then connect the item you want to galvanize to the negative terminal of a 5 volt power supply. Connect the positive terminal to a strip of zinc metal.
...
https://www.youtube.com/watch?v=jimPImGKPy8
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We made this using all the same chemicals in our previous glow stick making video just scaled up by a factor of 100.
The link is here: http://www.youtube.com/watch?v=kH19EIf5GtE
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So i've been trying to make lithium in a similar way to making sodium as shown in previous videos. But lithium synthesis appears to be very slow. Fortunately, this proves that all our previous samples of sodium that was made using lithium is probably very pure since lithium cannot be made under the same conditions.
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"Hydrogenation: transform liquid oil into solid fat" by applied science: https://youtu.be/oqdDWA9-DSY
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https://www.youtube.com/watch?v=zLWEemhtdbE
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In this video, we make isopropyl nitrite without using sodium nitrite.
Typically, amateur chemists use sodium nitrite, hydrochloric acid, and isopropyl alcohol for this process, but sodium nitrite is becoming harder to obtain. This sodium nitrite-free pathway goes through nitrosylsulfuric acid which can be made using more easily obtained fuming nitric acid and sulfur dioxide.
To make fuming nitric acid from you can use this video: https://youtu.be/88gbfCnrV8o
How to make sulfur dioxide: https://youtu.be/2AFKlLSwUZ4
To begin, we dry 400mL of 99% isopropyl alcohol using molecular sieves 3A (that itself was previously dried at 200 Celsius). In a separate flask, we mix 63g of fuming nitric acid with 150mL of glacial acetic acid, keeping the mixture cool in an ice bath.
To make glacial acetic acid, i refer you to Nile Red: https://www.youtube.com/watch?v=8iG_qnkF08Y
or Amateur chemistry:
https://www.youtube.com/watch?v=FOb4R5_LK-I
Meanwhile, a sulfur dioxide is injected from a sulfur dioxide generator into our nitric acid mixture forming nitrosylsulfuric acid.
After the reaction, the nitrosylsulfuric acid precipitates out. It's filtered and i got a Yield of 117g or 91%. Due to its instability, it must be used promptly. It's slowly combined with chilled isopropanol, creating isopropyl nitrite. Careful addition and temperature control are crucial to prevent decomposition.
After the reaction, we add ice and make up the volume to 1L to separate the isopropyl nitrite. A separatory funnel is used to recover the lighter organic phase of isopropyl nitrite. The final yield is 56g or about 63% based on nitric acid, with an adjusted yield of 69% based on nitrosylsulfuric acid quantity.
While this method may not match the ease of sodium nitrite-based processes, it serves as a valuable alternative for those facing sodium nitrite availability challenges.
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This video was generously sponsored by:
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make-manganese-dioxide-electrodes-for
How to make Manganese Dioxide Electrodes that can be used for chlorate cells or HHO cells and a few other electrochemical processes requiring inert anodes in oxidizing solutions.
Make the electrode is fairly simple. First a titanium strip is sanded to give a clean surface and then etched with hydrochloric acid to activate it. Cobalt nitrate solution is applied in a thin layer and then heated to 300 Celsius to decompose (pyrolyze) the cobalt nitrate into cobalt oxide. the loosely adhering cobalt oxide is washed off and then new layers of cobalt oxide are applied. Usually between 3 to 10 layers.
Then manganese nitrate is applied and the process repeated to make manganese dioxide. Another 10 to 50 layers may be applied.
Optionally, a further layer of manganese nitrate by electrolysis may be applied by using the electrode as an anode in a solution of 90 grams manganese sulfate, 500mL water and 12mL concentrated sulfuric acid. Copper or titanium is used as the cathode and a current density of about 10ma per square centimeter is used. A short run time of a few minutes or so puts a thin layer of manganese dioxide on the surface that seems to reduce permanganate production, but does not eliminate it.
In the future i'll be working on a lead dioxide electrode.
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https://www.youtube.com/watch?v=BjKYiu8eKa8
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