Posted: 10/31/2016 5:52:13 PM EDT
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I honestly figured it would blow up and was jokingly thinking about the leidenfrost effect, but didn't think it would apply since the O2 gas would combust. Guess I was wrong. Stuff like that is why I love this guy's youtube channel. Then again, Sir Martyn Poliakoff CBE CChem FRS FRSC FIChemE, knows a lot more about chemestry than I could ever learn in what's left of my lifetime.
https://en.wikipedia.org/wiki/Martyn_Poliakoff 
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I honestly figured it would blow up and was jokingly thinking about the leidenfrost effect, but didn't think it would apply since the O2 gas would combust. Guess I was wrong. Stuff like that is why I love this guy's youtube channel. Then again, Sir Martyn Poliakoff CBE CChem FRS FRSC FIChemE, knows a lot more about chemestry than I could ever learn in what's left of my lifetime. https://en.wikipedia.org/wiki/Martyn_Poliakoff  http://www.youtube.com/watch?v=y7uCBWkrAXo Embed into link |
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. Not unrelated...I'm making a LOX and GOX manifold for the newest Blue Origin and Aerojet-Rocketdyne engines set to power our rockets for satellite launches. No more buying Russian engines for our launches. Cool stuff. |
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I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? It would be interesting. The thing about the LOx experiment they showed was that there was only combustion of the immediate gas that was boiled off by the heat and part of the piece of charcoal. For combustion you need a Hydrocarbon fuel, and oxygen, and you get CO2 and H2O as a result. So in this case you just get localized Stochiometric conditions that are right for actual combustion. My bet is that if you threw a LOx saturated briquette in a fire, that you may get the same effect. You'd basically have an ice cube that would then convert from liquid then gas and the gas would make for some really fast combustion locally. |
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. Why is LOx dangerous? Other than its cold, Scrap iron recycling uses it for cutting steel. Cost efficient with propane and LOx. |
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I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? Quoted:
I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? Of course.  What you're referring to are Sprengel explosives, specifically Oxyliquit.
An oxyliquit, also called liquid air explosive or liquid oxygen explosive, is an explosive material which is a mixture of liquid oxygen (LOX) with a suitable fuel, such as carbon (as lampblack), or an organic chemical (e.g. a mixture of soot and naphthalene), wood meal, or aluminium powder or sponge. These fuels have the ability to absorb liquid oxygen amounts several times their own weight. It is a class of Sprengel explosives. See also p. 353-357 here |
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Of course. What you're referring to are Sprengel explosives, specifically Oxyliquit.
See also p. 353-357 here Quoted:
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I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? Of course. What you're referring to are Sprengel explosives, specifically Oxyliquit.
An oxyliquit, also called liquid air explosive or liquid oxygen explosive, is an explosive material which is a mixture of liquid oxygen (LOX) with a suitable fuel, such as carbon (as lampblack), or an organic chemical (e.g. a mixture of soot and naphthalene), wood meal, or aluminium powder or sponge. These fuels have the ability to absorb liquid oxygen amounts several times their own weight. It is a class of Sprengel explosives. See also p. 353-357 here I stand corrected! |
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Don't give me any ideas.  |
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Quoted: Of course. What you're referring to are Sprengel explosives, specifically Oxyliquit.See also p. 353-357 here Quoted: Quoted: I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? Of course. What you're referring to are Sprengel explosives, specifically Oxyliquit.An oxyliquit, also called liquid air explosive or liquid oxygen explosive, is an explosive material which is a mixture of liquid oxygen (LOX) with a suitable fuel, such as carbon (as lampblack), or an organic chemical (e.g. a mixture of soot and naphthalene), wood meal, or aluminium powder or sponge. These fuels have the ability to absorb liquid oxygen amounts several times their own weight. It is a class of Sprengel explosives. See also p. 353-357 here An oxyliquit explosive can be accidentally made by spilling liquid oxygen on tarmac during filling high-altitude airplane systems. The pavement then can become sufficiently explosive to be initiated by walking on it; the oxygen evaporates soon, though. I don't' like liquid O2 |
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I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. Isn't that exactly what killed the Apollo 1 crew? A high concentration of O2 with an ignition source? |
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Isn't that exactly what killed the Apollo 1 crew? A high concentration of O2 with an ignition source? The atmosphere in Apollo 1 was both 100% oxygen and high pressure (2psi above atmospheric). I ain't no doctor, but I don't think a splash of liquid oxygen on the ground would make a significant difference in the proportion of oxygen in the atmosphere of the room. |
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I feel so stupid watching his youtube videos but he's so excellent at explaining things to a layman without sounding like a pompous prick. His chanel is very entertaining and insightful at the same time Yup. His and NurdRage are great for that. NurdRage is more raw chemistry but does stuff arf shouldn't know about, like how to make thermite or chloroform. 
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I stand corrected! Quoted:
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I want to see a lump of charcoal sarurated in LOx tossed into a fire. Will it detonate? Of course. What you're referring to are Sprengel explosives, specifically Oxyliquit. An oxyliquit, also called liquid air explosive or liquid oxygen explosive, is an explosive material which is a mixture of liquid oxygen (LOX) with a suitable fuel, such as carbon (as lampblack), or an organic chemical (e.g. a mixture of soot and naphthalene), wood meal, or aluminium powder or sponge. These fuels have the ability to absorb liquid oxygen amounts several times their own weight. It is a class of Sprengel explosives. See also p. 353-357 here I stand corrected! Who else would reply but the guy with that screen name. 
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. I was a 4283 on the Bush. (Talking about an O2 producer nothing like what was taught in Cryo School), I definitely agree with the dangerous shit when dealing with LOX. Although Dr. Pepper slushies made in the LOX drip pan were great. |
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Why is LOx dangerous? Other than its cold, Scrap iron recycling uses it for cutting steel. Cost efficient with propane and LOx. Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. Why is LOx dangerous? Other than its cold, Scrap iron recycling uses it for cutting steel. Cost efficient with propane and LOx. LOx itself is inert. One of those noble gasses However it will drop the flash point of the material it comes in contact with. Making for an explosive situation (especially when combining with hydrocarbons). (Cliffs notes version) |
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Shudder...... |
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I honestly figured it would blow up Years ago, there was a group of dudes who had regular contests to see who could light a charcoal grill the fastest, and liquid O2 was involved. They found, to their surprise, that if you soak the charcoal in liquid O2, then it did become an explosive. |
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Shudder...... I wonder what happened to that poor kid at the end. 
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Yup. His and NurdRage are great for that. NurdRage is more raw chemistry but does stuff arf shouldn't know about, like how to make thermite or chloroform. Quoted:
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I feel so stupid watching his youtube videos but he's so excellent at explaining things to a layman without sounding like a pompous prick. His chanel is very entertaining and insightful at the same time Yup. His and NurdRage are great for that. NurdRage is more raw chemistry but does stuff arf shouldn't know about, like how to make thermite or chloroform. Wait what?!? Ill need to look into that! I WILL get that date this time! |
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Wait what?!? Ill need to look into that! I WILL get that date this time! Quoted:
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I feel so stupid watching his youtube videos but he's so excellent at explaining things to a layman without sounding like a pompous prick. His chanel is very entertaining and insightful at the same time Yup. His and NurdRage are great for that. NurdRage is more raw chemistry but does stuff arf shouldn't know about, like how to make thermite or chloroform. Wait what?!? Ill need to look into that! I WILL get that date this time! What? Your think women are weirded out by your long saladfingers after you got caught in a lathe? Perish the thought.
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I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. I was thinking the same thing. |
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I was thinking the same thing. Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. I was thinking the same thing. I doubt the ppm increase would be enough to risk ignition though. Considering he's a world renowned chemist, I'd hope he thought of it. |
| Oxygen is not something to mess around with, things that are normally safe become super flammable. I did a "yikes" when he just dumped it out at the end. Looks like it's next to an old fridge, which may have an exposed switch. It also appears that the charcoal was in the same room. Anyway I'm sure they have way more experience than I do working with that stuff, I have respect for it so I don't get blowed up. |
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LOx itself is inert. One of those noble gasses However it will drop the flash point of the material it comes in contact with. Making for an explosive situation (especially when combining with hydrocarbons). (Cliffs notes version) Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. Why is LOx dangerous? Other than its cold, Scrap iron recycling uses it for cutting steel. Cost efficient with propane and LOx. LOx itself is inert. One of those noble gasses However it will drop the flash point of the material it comes in contact with. Making for an explosive situation (especially when combining with hydrocarbons). (Cliffs notes version) Oxygen a noble gas? I think you have your idea of what a noble gas is completely wrong. Oxygen is not a fuel, but its an oxidize, so far from a noble gas its very name shows how reactive it is. Oxygen is one of the most reactive gasses on the planet, while nobel gasses are considered non-reactive which is why they are used in welding too shield the part from.,,,,,,,oxygen. |
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Quoted: I was thinking the same thing. Quoted: Quoted: Quoted: I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. I was more concerned about when they dumped it at the end. I doubt everything in that room was intrinsically safe. I was thinking the same thing. What does an oxidizer have to do with intrinsic safety? |
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Oxygen a noble gas? I think you have your idea of what a noble gas is completely wrong. Oxygen is not a fuel, but its an oxidize, so far from a noble gas its very name shows how reactive it is. Oxygen is one of the most reactive gasses on the planet, while nobel gasses are considered non-reactive which is why they are used in welding too shield the part from.,,,,,,,oxygen. Quoted:
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I work in cryogenics for a living - Liquid helium. LOx is some dangerous shit. I'd have never attempted that. Interesting though. Why is LOx dangerous? Other than its cold, Scrap iron recycling uses it for cutting steel. Cost efficient with propane and LOx. LOx itself is inert. One of those noble gasses However it will drop the flash point of the material it comes in contact with. Making for an explosive situation (especially when combining with hydrocarbons). (Cliffs notes version) Oxygen a noble gas? I think you have your idea of what a noble gas is completely wrong. Oxygen is not a fuel, but its an oxidize, so far from a noble gas its very name shows how reactive it is. Oxygen is one of the most reactive gasses on the planet, while nobel gasses are considered non-reactive which is why they are used in welding too shield the part from.,,,,,,,oxygen. You sir are correct. I stand corrected. Back to the Hillary thread I go...
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