Hi chemists of Reddit!
I recently started my bachelor thesis and now have to use a oxyhydrogen torch on a regular basis to seal reactants in a quartz glass ampoule in vacuo. Well it turns out that is kind of tricky. So now I wonder how other people do it?
I was thaught the two-bubble approach, where you would melt two bubbles into the opposite sites of the glass tube until they met in the middle. Then you would melt the edges of the bubbles to that ideally you have one flat wide and one narrow side. Afterwards you take the flask off the Schlenk line (but of course keep the vacuum) and start working on heating the section you "prepared" and slowly pulling it apart.
I already burned one or two holes into my ampoules, which basically means having to start all over, so I am very grateful for any tips and other people's experiences :)
Clarification: I am of course supervised and no one is alone in the lab while working with the torch :) And they are all very nice and have their routines doing it and happily give advice.
I already did about four, the first one empty for practice, all while wearing the appropriate goggles and gloves.
I mostly am interested what techniques other labs use, does everyone have their own? I found one video of a man just burning trough his ampoule in two minutes, while we need 10-20min and wonder whether that really works.. it looked like he should have burned through the glass in seconds, but seemed to have been successful.
The video: https://av.tib.eu/media/18717 (at 10:45min)
Goog evening, I am new on this thread and I would like an advice. I was thinking about building a device for oxyhydrogen welding/cutting. What do you guys think about the actual possibilities of using such a flame for welding steel, aluminium and other metals? I heard several opinions, but they are quite contradicting when it comes to the characteristics of the flame and the welds that can be done with it
I need to make a rather large (or multiple small) dry cell/cells for a project of mine. I would like to use a material that doesn't corrode much or at all after many years of use. When I first started doing research about this I watched a lot of videos about people making HHO generators using stainless steel as both the anode and the cathode but I recently have found things saying that using that metal creates Hexavalent chromium which is extremely harmful. I then did more research and found that titanium could be good for this purpose, but I'm really not sure what I should use, so please help!
By the way, I plan to use Potassium hydroxide as the electrolyte.
If you need any more information, tell me!
I don’t want to wade into a hydrogen debate, I’m just curious about something. Some manufacturers have turbines which can run on 100% hydrogen, but these will still produce NOx emissions of burned using air. Are there turbines which are rated to be burned in an oxyhydrogen atmosphere, free of air?
A place for members of r/oxyhydrogen to chat with each other
I'm not looking for people to debunk this idea - I am well aware of the shortcomings of doing this. Nevertheless I would like to make something similar to this video (https://www.youtube.com/watch?v=GVMmSrA3DJ0_) but for it actually to work.
What is the problem with the setup shown in the video and how could I get it to work?
Thanks in advance...
Chemical lesson here. From Skill 4 of Red Conga to real life, Is that real? Did Oxyhydrogen cause explosion? Because Oxyhydrogen is an actually combination Hydrogen and Oxygen gas together. (2^H 2^O).
If I have a system that will produce 15 L of Oxyhydrogen per minute, how many BTUs would it theoretically produce (from burning Hydrogen) in an hour? [Assuming it were well-insulated and had 100+°F air intake.] I came up with just over 6,100 BTUs/hr and feel like the way I got the answer was very crudely, but I'm an embalmer, not a physics major. Bahahaha! Any assistance and/or clarification with this would be greatly appreciated, so a wholehearted thank you, in advance!
If a burst of oxyhydrogen flame were to hit an Osmium plate, would the plate melt? Osmium has a high melting temp, but hydrogen has a low boil temp/atomic number. So what would happen if Osmium and a oxyhydrogen flame collided?
I remember reading about these about three years ago, claiming that they could give the user increased mileage from water and electricity ( I know I simplified that). Someone brought it up at work, but I would like to hear from the Reddit community regarding the matter.
Has anyone here ever used one? Did it work? What was the experience like? Can anyone suggest some builds?
I am studying for my materials and manufacturing exam, when reading about joining methods I came across that an oxyhydrogen torch flame is roughly 2800C, but in this video Cody uses one to melt Tungsten which has a melting point of 3500C. What gives?
Holy cow, maybe not the best title. Let's say we set up an engine that runs on H2 + O2 that we can collect from water via electrolysis. The gas is extracted from a water source, sent to the engine which combusts the gas to produce mechanical energy, which is then used for powering the electrolysis that feeds the engine. Assuming we keep adding water to the system, can the engine keep itself running? Can the engine produce more mechanical energy than is necessary to power itself?
Edit: Also, wasn't sure if this is an Engineering, Chemistry, or Physics question, so I flaired it as Physics.
Does anyone here use a oxyhydrogen kit?
What effect does this have on the inside of the engine? I want to try this, but idk if it will harm internal components.
I have seen posts online about hydrogen kits installed on vehicles. I have done some research and it looks plausable. Realistic goals and safety devices all make sense to me. (Went to school for engineering so I can tell if the devices are reasonable at least). I cannot find anything on the effect this has on internal components.
I've been thinking of getting into metal casting and I'm looking into fuel sources. Oxyhydrogen is cheap, easy to make, and can supposedly get very hot, so has anyone ever used it in a furnace to melt metal?
Phil
Sudden Lee
Go post NSFW jokes somewhere else. If I can't tell my kids this joke, then it is not a DAD JOKE.
If you feel it's appropriate to share NSFW jokes with your kids, that's on you. But a real, true dad joke should work for anyone's kid.
Mods... If you exist... Please, stop this madness. Rule #6 should simply not allow NSFW or (wtf) NSFL tags. Also, remember that MINORS browse this subreddit too? Why put that in rule #6, then allow NSFW???
Please consider changing rule #6. I love this sub, but the recent influx of NSFW tagged posts that get all the upvotes, just seem wrong when there are good solid DAD jokes being overlooked because of them.
Thank you,
A Dad.
So far nobody has given me a straight answer
Because a toothbrush works better
I am currently in the hospital. I had a back operation yesterday. The surgical nurse came in my room and started asking questions about my back. She asked me if I had any falls during the last year. I responded just one. It was after summer.
She laughed and said in 20 years of doing this she never was told that joke.
Indian places are naan profit, Vietnamese places are pho profit.
Had to ground him until he could conduct himself properly.
..... Will get a reward.
The Bushes
Because they work on many levels
