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Conversation in the pub about Californium Astatine (CfAt2, using 211At, 252Cf) as a possible "what's the most batshit compound we can come up with" (no, it's probablynot possible, but fun to think about). I needed a refresher in just what astatine entails. Per wiki: quote:All of its isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Okay, that's pretty cool.
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Jan 23, 2015 11:00
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Icon Of Sin posted:I saw a mention of dioxygen chlorine trifluoride in that article's comments. That sounds like the most unholy molecule in existence that will kill you in any number of terrible ways just for looking at it wrong. We've already got a molecule that is evidence there is no such thing as a kind and loving god, let's cram some extra oxygens on the ends of it and see what happens One of my favourites from TIWWW is the updates from Klapötke, like the merely (hah) ridiculously explosive C2N14. Yup. Fourteen loving nitrogen atoms in a single molecule, with a couple of carbons acting like nightclub bouncers between two armoured divisions. It explodes if you so much as look at it funny. As in, "The sensitivity of C2N14 is beyond our capabilities of measurement. The smallest possible loadings in shock and friction tests led to explosive decomposition." It explodes if you try to get an infrared spectrum of it. Naturally, as eating a tube of Pringles on the next planet over will cause it to go "boom", its main use is in the field of getting rid of spectrometers you didn't like anyway.
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Jan 24, 2015 00:07
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ToxicFrog posted:No, but it may be inspired by the story they're actually talking about, which is in Ignition: No "may be" about it, Charlie's a big fan of Ignition, and of the kind of chemistry that amuses this thread in general.
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Feb 1, 2015 01:01
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Carbon dioxide posted:Chemistry is really very simple. It works like this: That chemist's successor publishes the results posthumously.
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Feb 10, 2015 19:58
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Collateral Damage posted:"Things That Suddenly Want To Turn Back Into Elemental Nitrogen" "What are the most exciting things to watch someone else synthesize from a safe distance?"
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Feb 10, 2015 20:53
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Not strictly dangerous, but one of the best chemistry papers I've read for a while: A Simple and Convenient Synthesis of Pseudoephedrine From N-Methylamphetamine
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Feb 15, 2015 02:16
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DemeaninDemon posted:Opium doesn't really make the symptoms go away though. They're there but you just stop giving a gently caress. No, it's an actual cough suppressant, and it does indeed stop diarrhoea. You also stop giving a gently caress, but that doesn't mean it doesn't fix the symptoms.
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Feb 16, 2015 17:44
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Wasabi the J posted:"And one more nitrogen..." "This reaction's mostly useful if you've got a molecular printer that you don't want any more."
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Mar 14, 2015 01:00
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Carbon dioxide posted:Psst. The old adage "give chemists a challenge and they'll try to make it" is true once again. 
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Apr 15, 2015 13:34
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Icon Of Sin posted:Not acknowledging its existence may anger it as well. You really can't win with these things, but those drat Germans seem to love to play anyways. I'm actually getting slightly scared that just typing hexadecanitrofullerene now may cause enough residual vibration at the time when those [del]idiots[/del] fine experimental minds at Klapötke create a molecule that it spontaneously detonates.
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Apr 15, 2015 18:46
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Kinetica posted:You know, I would be quite happy and interested in watching any of the hexanitro or other nitrogen hell compounds be made and tested. -Via webcam on Mars.
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May 15, 2015 20:30
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Humbug Scoolbus posted:Hard to open the conference room door when you're missing your arms. Any excuse to link Derek Lowe on hexanitrohexaazaisowurtzitane: I'd call for all the chemists who've ever worked with a hexanitro compound to raise their hands, but that might be assuming too much about the limb-to-chemist ratio.
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May 16, 2015 10:06
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I don't have access to the full paper, but would this be any help in figuring a potential detonation velocity for N60? It isn't what you do with it, it's how quick it's done that counts.
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Jul 7, 2015 23:12
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The Lone Badger posted:The brass apparently kiboshed the proposal for cyanide-based fuel. And yet they were fine with testing FOOF as an accelerant.
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Feb 26, 2016 11:15
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Collateral Damage posted:What's the V8 for then you ask? That's the oxidizer pump for the rocket. WITNESS ME! 
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Mar 9, 2016 15:46
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poo poo's crazy up in this joint.
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Mar 21, 2016 23:17
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packetmantis posted:Stagger a poo poo-ton of probes so they'll be at a distance from one another that allows them to relay the data back in a timely fashion. Ah, the Vint Cerf method.
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Apr 18, 2016 09:44
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Moist von Lipwig posted:A while back we were talking about octanitrocubane and other fun explosives and I swear someone mentioned one with a detonation velocity greater than earth's escape velocity but I can't find it. Octanitrocubane has the highest detonation velocity, 10.1km/s; escape velocity is 11.2km/s. I think that was when we were trying to work out the detonation velocity of hexadecanitrofullerene. And cackling madly.
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Apr 21, 2016 09:59
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Luneshot posted:I'm not a chemist- is there some layman's explanation somewhere about nitrogen groups and why they're so explosive? A lot of you react to these names with utmost horror but I don't know what they mean. Nitrogen atoms really want to be in N2 molecules --- that molecule has a triple bond, meaning it takes a lot of energy to break apart, and thus, it releases a lot of energy when it forms. Most explosive compounds have many nitrogen atoms in a larger structure, so they've got weaker bonds to the surrounding atoms. Add in the energy needed to weaken those bonds (the activation energy), and all of a sudden the nitrogen atoms' desire to be in a low-energy state overrides the existing bonds. They snap back to N2, releasing a lot of energy and generally going from a dense-ish solid to an expanding cloud of gas, both things that we give a poo poo about as people interested in the kind of chemistry that requires running shoes. The trick with nitrogen-based explosives isn't getting them to go bang, it's getting them to a state where the activation energy is high enough that they don't go bang when someone decides to open a bag of Doritos in the next building.
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Apr 21, 2016 14:53
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Someone just linked me to a very interesting paper. It coined the term "buckybombs".quote:Abstract. Energetic materials, such as explosives, propellants and pyrotechnics, are widely used in civilian and military applications. Nanoscale explosives represent a special group because of high density of energetic covalent bonds. The reactive molecular dynamics study of nitro-fullerene decomposition reported here provides, for the first time, a detailed chemical mechanism of explosion of a nanoscale carbon material. Upon initial heating, C60(NO2)12 disintegrates, increasing temperature and pressure by thousands of Kelvins and bars within tens of picoseconds. The explosion starts with NO2 group isomerization into C-O-N-O, followed by emission of NO molecules and formation of CO groups on the buckyball surface. NO oxidizes into NO2, and C60 falls apart liberating CO2. At highest temperatures, CO2 gives rise to diatomic carbon. The study shows that the initiation temperature and released energy depend strongly on the chemical composition and density of the material. The established explosion mechanism provides guidelines for control of combustion and detonation on the nanoscale.
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Apr 21, 2016 16:08
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Hexadecamatryoshkanitrofullerine?
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Jul 13, 2016 14:13
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Woolie Wool posted:Hexecontaazabuckminsterfullerene is the full 60.
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Jul 19, 2016 10:08
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Reminds me of cleaning out our equipment store at work. Our ancient computer graveyard is also the electronics hardware lab store room. So in addition to our junk, it's got lots of fun things like half-etched circuit boards. One day, we were having a clear-out and cracked open a cupboard that hadn't been opened in about ten years. At the back of a shelf was an old sealed jar. The contents looked a bit shiny, so we took it out. Fucker was heavy, and the contents sloshed against the side and went 'clunk.' We look at one another, and my coworker gets to make the call. "Hi, yeah, this is XXXX in the School of Engineering. We've just found some mercury." ... "No, a bit more than a couple of old thermometers." ... "About a pint." Cue the guys in hazmat suits turning up and whisking it away. Since we're a university in the UK and we have lots of interesting chemicals to dispose of, it turns out it's cheaper for us to get a license as a hazardous chemical disposal facility than it is to hire the appropriate certified transportation each time, so somewhere under one of the Chemistry buildings is a room full of Cool poo poo™. One day, I shall find it.
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Aug 4, 2016 14:57
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I mentioned this on Twitter and someone pointed out a paper written way back in 1999: The Effects of Moore's Law and Slacking on Large Computations
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Jan 20, 2017 10:58
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atomicthumbs posted:the thing I've found that works best for cleaning electronics at work is an old bottle I pulled out of our "chemicals people have dropped off as e-waste over the years" shelf from Fisher Scientific labeled "100% 2-Propanol" and it'll strip gross degraded soft-touch coatings off of 90s cameras but hoo boy are the fumes potent "2-Propanol" is just another term for isopropyl alcohol. We use it as keyboard/whiteboard cleaner, don't think it really belongs in this thread.
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Dec 21, 2017 10:57
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IGNITION is being reprinted!!!!
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Jan 26, 2018 14:00
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Syd Midnight posted:"For dealing with this situation, I have always recommended a good pair of running shoes." - Ignition 6:3 I hadn't thought to do it before, but treating Ignition! as the holy text of this thread is very suitable.
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Feb 7, 2018 12:42
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Tunicate posted:There is nothing in the world more helpless and irresponsible and depraved than a man in the depths of an ether binge. 
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Feb 21, 2018 10:19
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Moist von Lipwig posted:Planck time is just a 1.0×10-64th note. Good luck writing a note with 211 beams.
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May 23, 2019 16:34
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New Derek Lowe. Choice quote:quote:You’re not going be able to cram more nitro groups onto a tetrazole system that small, darn it all, that’s all there is and there ain’t no more. It’s fair to ask whether this hexanitro beast can even exist. As you read the paper the answer turns out to be “Just barely”.
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Aug 15, 2019 16:04
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GWBBQ posted:I know it was someone here, were you the one with the story about getting stuck in traffic with an alarming amount of ammonium triiodide sitting on your lap? It was indeed Camrath Camrath posted:I have a story about this stuff..
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Oct 14, 2021 02:01
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Placeholder posted:My brain absolutely refused to read this sentence in something other than the voice of Professor Farnsworth. How's his wife holding up? More absorbent than clay, you say?
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Apr 6, 2022 13:31
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May 16, 2022 00:57
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Icon Of Sin posted:What did NO ever do to you? Bought them dinner?
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Jan 7, 2023 04:45
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OwlFancier posted:Yellow Cake is actually very dangerous, leading cause of Czech Neck It stimulates an area of the brain known as Shatner's Bassoon
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Jul 9, 2023 00:03
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venus de lmao posted:my sense of smell was shot off in iraq Much like my old mess sergeant's taste buds
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Mar 26, 2024 19:37
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