Important safety note: you definitely do not want to be breathing the resulting smoke from the silane reaction. Ultrafine silicon and silicon dioxide are hideously bad for your lungs, and can lead to uncurable silicosis if exposed long enough.
@@YunxiaoChu Just look up silicosis. In medical textbooks, it happens to individuals who are exposed to sand blasting as part of their work. The ultrafine silicone dioxide is probably even worse than what you're exposed to in sand blasting
You can put a wad of stainless steel wool into the reaction test tubes to limit movement of air/moisture/powder without creating a hard barrier that risks going boom.
Mg and quarz sand works very well making magnesium silicide if both are perfectly dry. Moisture disturbs the reaction and also makes it dangerous. Glass is attacked everytime Mg powder was ignited inside (glass is mostly SiO2, too!) and shouldn't be used again for heating afterwards.
God, people really want you to make silicon wafers?! Lol, these are really hard indeed, the high temperatures and apparatus is just not possible. Anyway, funny silly gas -w-
Honestly these videos are great even if you aren't going to go to the ends of the earth to make a completely perfect single-crystal ingot of silicon >:)
Use magnesium aluminum alloy in excess with a tiny amount of sulfur added to start the process. You need 1 part aluminum, 1 part silicon dioxide, and 2 parts magnesium. You will want a slight excess of aluminum and a tiny amount of sulfur to make it run correctly. Run in a small ceramic flower pot. The material will end up a black gray material under a white crust. Crush under an inert atmosphere and load into a flask with a backfill of nitrogen or hydrogen.
I was just looking at some chemistry stuff and found something really surprising. Hair and Wool are actually 5% sulfur by weight. Could you make a video about extracting sulfur from wool? I feel like you could probably just break down keratin with an alkaline hydrolysis process and vaporize the sulfur with heat (like how it's extracted from rocks industrially). You should consider making a video about this. Would probably be a youtube first, and not necessarily all that hard (unless there's something preventing sulfur from being released from keratin with just heat and hydrolysis alone).
The only way would be to burn it, separate the oxidized sulfur gas from the smoke, and then reduce it back into sulfur. It's chemically a part of amino acids like methionine, bonded to carbon. The sulfur bonds 2 different parts of a protein together with a disulfide bridge. Like tying knots in the middle of a balled up piece of string. They do something like that to measure ammonia/protein in food. The kjeldahl method. Sulfuric acid to break apart the amino acids, base to release ammonia as a gas, then measure how much ammonia is produced. It's the test people were fooling by putting toxic melamine in baby food a while ago.
What would happen if you brought that stuff into the nitric crystals cave where temp is 121'F and humidity around 120%. Lots of reagents all ready to go and in the optimum shape for burning. Plus since the dew point is at temp 20'F higher this causes your lungs to fill with fluid and you will drown in a few minutes. I would still go there with a o2 tank and some type of cooling vest : LIKE ONE I SAW ON AN INFOMERCIAL FOR ONLY THREE PAYMENTS OF $274.95 Plus tax and shipping and hazmat and federal dangerous items levies. ,
In 1998-99 we used Silane as a hypergolic igniter for LOX-Kerosene engines at Rotary Rocket. It worked well for igniting the rocket engines but our test site crew hated the stuff because there always seemed to be a trapped volume somewhere in the feed system that made working on the plumbing Much Too Exciting. I had to clean the engines between tests and the resulting slag did a great job of clogging orifices in the injector and pressure-sensing ports, needing ammonium bifluoride to remove. We replaced it with a pyrotechnic device and hydrogen that was reliably started by the pyro, but these misadventures led to our first thing developed at our next company (XCOR) being a supersonic spark-torch igniter, having learned our lesson.
Yes it's challenging to purge. It is widely used in the semiconductor industry. The plumbing there is set up to do multiple vacuum and N2 fill cycles in between air and use regardless of start up or shut down.
I just started watching this channel yesterday and every video I have seen so far has made me laugh. I love the entertainment you provide with the chemistry. Keep up the great work!
i feel like nilered fell off. i havent seen him put out any good videos in a long time. all he does is break stuff and waste money and act super immature. in his massive lab. idk maybe im a hater but idk.
This reminds me of the time I tried making sodium metal by electrolysis when I was in middle school aged. Little blobs would form in the molten hydroxide mix, but they float too well. They would almost instantly catch on fire after I saw a little metal blob. When I finally got a big-ish blob, it touched the + & - of the wires, short circuited them, and blew up with a loud pop that sprayed flaming bits everywhere. I put it on indefinite hold after that. Did you only dry the SiO2 in that oven? It might have absorbed a lot of water from the air and magnesium can burn the oxygen in water. I think you have to go to 450f+ to make it stop being a desiccant. Lower temps just refresh it. You could do some pyrotechnics stuff, if you're looking for ideas. RC Candy rockets(KNO3 sugar melted together) would be a good show. Making black powder and the special charcoal is a lot of work. You could also make some okay flash powder with your Mg powder and KNO3. Great work!
11:27 One issue with using soap to make bubbles is that soap is a base and doesn’t work well in an acidic environment. I’m not sure if there’s such thing as an acidic soap but if so I think it would work much better.
I mean the requirement for soap is a hydrophobic end and a hydrophilic end so I’d imagine that some long chain amine as the HCl salt should work but idk if it would bubble. Might be worth experimenting with.
Just a suggestion ,angle the test tube more to spread the product then heat back to front .Also make sure the mix is put in a desiccator overnight must be perfectly dry if not it could erupt in a large fireball. great videos
