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Chlorine trifluoride is nice but bromine pentafluoride is better. It's used for mass spectrometric analysis because it vaporizes rocks. Also when it reacts with water it created a cloud of HF gas.
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Jan 12, 2014 03:06
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I'm gonna give a simple shout-out to Piranha solution: 4 parts concentrated sulfuric acid, 1 part 20% hydrogen peroxide, served hot. It does a great job if you want to clean pretty much any organic compound off a surface, but that also included your flesh right off your bones. In my old lab I used to make the stuff daily and one drop fell on my leather lab shoes and almost ate a hole clear through them (wear closed toe shoes and aprons kiddies). Oh yeah, also if you do something real dumb like pour ethanol in the piranha you get a big fire pretty quickly. Bip Roberts has a new favorite as of 01:58 on Jan 17, 2014 |
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Jan 17, 2014 01:55
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ol qwerty bastard posted:My high school chemistry teacher claims to have been knocked out by taking a whiff of a container of glacial acetic acid. I'm sure it would be rather unpleasant, in any case. The Lone Badger posted:I work with 90% acetic acid. It smells like someone shoving a 6" nail up your nostril but it won't knock you out. Glacial acetic acid has almost no smell at all, while 90% will give you a nearly instant nosebleed if you sniff it. This can be explained by steam distillation. The vapor pressure of neat acetic acid is very low but if you add just a little bit of water it shoots up and you'll huff a ton of vinegar.
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Jan 17, 2014 09:35
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ALL-PRO SEXMAN posted:Also it's the sweetest of the transition metals. Is mercury actually sweet tasting? I know lead is.
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Jan 20, 2014 08:07
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Johnny Aztec posted:There are different kinds of mercury. Some are worse than others, some are pretty benign. You use to could get mercury that you would swallow to help you poo poo. It doesn't get absorbed into your body. You just collect it after it's forced you to defaecate. Purestrain mercury.
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Jan 20, 2014 08:45
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My dad had a bid to salvage a lighthouse back when he was in college and he said the biggest ticket item they recovered was 200 lbs of mercury that they used as bearings to float the fresnel lens.
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Mar 10, 2014 17:25
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Bertrand Hustle posted:Pretty much everyone involved in that (except the children) had to have been weapons grade retarded. Children are pretty stupid last time I checked.
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Mar 12, 2014 04:23
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Say Nothing posted:A more recent one. I don't know if carjackers dying of radiation poisoning can be called schadenfreude. Isn't that literally the plot of Repo Man?
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Mar 12, 2014 05:03
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pigdog posted:Talk about foul smelling chemicals got me thinking: what are, on the other hand, the best smelling chemicals out there? Esters are a generally nice smelling moiety.
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Mar 13, 2014 21:44
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Saint Celestine posted:This might be an appropriate question for this thread- Performing a Tollens' reaction to silver plate a beaker is a fun one.
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Mar 15, 2014 00:03
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XMNN posted:Marine toxins often look pretty cool. Maitototoxin is awesome because it's a total miracle of natural synthesis. It has 98 goddamn stereocenters, for one.
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Apr 29, 2014 07:14
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Rexicon1 posted:First year orgo students learn everything they need to make MDMA. Id imagine a PhD could make really high yield batches of it in their sleep. What goes into making one gram of a pure product is completely different than what goes into making kilograms of a pure product. There are a lot of very non-trivial kinetic problems that arise when you scale a reaction. You can't just do what you did small but bigger and expect the same thing.
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May 3, 2014 08:16
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Jonah Galtberg posted:can't wait for the fire resistant strains Polypeptides that could survive a blast furnace would be a big enough discovery that I'd be willing to deal with the superbug.
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Jul 9, 2014 16:35
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Fucknag posted:"whatever/blah alloy" is basically just science words to sound fancy; see also "transparent aluminum", etc. Sapphire sounds even fancier.
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Aug 27, 2014 06:35
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Trifluoroacetic acid is a cool substance. It's a strong acid that you can evaporate off because it boils at 70°C. Great for organic chemistry when you need to remove a protecting group then pump off the acid. It also reacts with the moisture in air and releases a cloud of Teflon gas. It's actually not super dangerous besides it's reactivity but it's always fun opening bottles that smoke vigorously in air.
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Oct 14, 2014 18:07
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Zemyla posted:It's probably just a delivery system for the cyanide group on the side. Nitrile groups are very non-labile, so probably not. That is also the mechanism on why they're so bad for your cytochrome c oxidase. Bip Roberts has a new favorite as of 17:44 on Nov 3, 2014 |
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Nov 3, 2014 17:41
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Deteriorata posted:You don't just dump stuff together and see what happens. Why are you discounting 70 years of very successful work by Soviet organic chemists?
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Nov 3, 2014 17:49
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Memento posted:What do you do if the death drum has Z as its spin axis? It could go anywhere! Cup your balls and sing the dreidel song goodbye.
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Dec 30, 2014 16:46
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JacquelineDempsey posted:Hey, I just need to get my car out of this bad area. It'll make you poo poo real good.
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Jan 8, 2015 06:27
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DemeaninDemon posted:That's weak poo poo compared to a lot of chemical manufacturing reagents. Hell you can transport that stuff as a solid and be OK. The real nasty ones are produced and consumed inline on site. Vinyl chloride, the precursor for PVC, for example generally doesn't leave a facility. It also skeletonizes you if you override a poo poo-ton of safety features to release it into your room so you can explode a dozen of your cowokers.
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Feb 12, 2015 05:16
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Humbug Scoolbus posted:Imagine this in the hands of German researchers,,, I guess it's 3d in that mass takes up physical space.
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Mar 14, 2015 01:07
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I hope he didn't kill 3 people like the vloger dude who set the pile of boxes on fire.
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Nov 11, 2015 04:20
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The bubbling action can help piranha work too
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Sep 17, 2023 19:12
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I mean it's not dangerous on the counter top, you probably don't want to hit it was an angle grinder and start doing lines.
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Dec 27, 2023 08:27
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Solvated electrons are the real dawgs.
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Jan 31, 2024 02:31
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Didn't read
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Feb 2, 2024 04:41
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I never feared the piranha solution but I did burn a hole into my leather lab shoes with a good sized drop of it once
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Feb 8, 2024 05:08
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Here I was with a coworker wirebrushing big iron oxide stain off a teflon pipe fitting and they didn't think "just drop that in some hcl" was a good solution
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Feb 11, 2024 06:03
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| # ¿ May 8, 2024 00:32 |
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I thought I heard that they were looking at targeted gene replacement for sickle cell disease which is the best case in terms of the simplicity of the fix, number of people and benefit.
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Feb 21, 2024 04:49
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