Why is "compressed air" not actually compressed air but some ultra-poison that decomposes to nerve gas and bone liquefier if you accidentally set it on fire?
>>109061496"air" isnt real
>>109061496It's difluoroethane as written in the original poster's picture not ultra-poison that decomposes to nerve gas and bone liquefier and we use it because it's not ultra-poison that decomposes to nerve gas and bone liquefier, quite the opposite.
>>109061496Works better than real air, something about moisture and electronics.
>>109061496
>>109061496is compressed air a technology?
>>109061528>is compressed air a technology?Compress some air into a can without using technology for me real quick.
>>109061518As OP stayed it rapidly decomposed to HF if it comes into contact with fire or high heat.HF is no joke. One should be very careful with any organic molecule with halogen on it, especially if it's more than one and it's not chloride. Worst of all is fluoride. https://en.wikipedia.org/wiki/Hydrogen_fluoride
>>109061505
>>109061496The reason why it's not compressed air is you can't really compress air into small cans like that. There's a reason air compressors are machines that do it in realtime.
>>109061574Teflon releases nasty fluorine compouds when decomposing as well, not as bad as HF but nobody who actually understands how to use a pan seethes about it, you have to either forget you have something on the stove or just be insane and stupid. It releases gnarly products when decomposing precisely because it is so stable and unreactive.
>>109061518>difluoroethaneWhat the hell? In my country, it's literally a propane/butane mixture, which is flammable. It's basically the same shit that's used in lighters.
>>109061633>It releases gnarly products when decomposing precisely because it is so stable and unreactiveNo, it's because teflon is a carbon chain where the hydrogen has been swapped with fluroide.Having halogens in an organic molecule absolutely does not mean it becomes more stable in any sense but it significantly increases the risk it'll decompose into extremely toxic chemicals, if it's not already extremely toxic in its original form.1,1-difluoroethane is not at all stable and yet it decomposes into hydrogen fluoride, among other nasty stuff.
>>109061520>moisture and electronics.ppffffffft!I use a dishwasher to clean my electronics.
>>109061650Do you live in some oil bay shithole where lng is cheap as water or something lolNo civilized country would tolerate such an insane risk.
It's because the can is full of special liquid that becomes air when you spray it. It can make a lot of air from the smallest amount of liquid so it's really quite efficientWe came to accept the dangers because there was no other way, please understand the dangers are not common usecase of the product
>>109061691>people understand the dangers tell that to all the 12 year olds that huff duster
>>109061523Are these good? I'm considering buying one of the cheaper Chink ones. Some cost around the same as a single can.
>>109061708just be sure to also order some chink ear protection alongside
>>109061708i think it's enough as a PC duster>>109061717not *that* noisy tho, it's just a RC plane EDF glued together with some high discharge cells
>>109061680No, Eastern EuropeIt's LPG, and I'm pretty sure it's a lot cheaper than fluorine compounds. All of them have this in them.I found 1 type that specifically says non-flammable, it costs $30 for 500g can. The normal flammable one is like $5.50 for 400g.
>>109061680>No civilized country would tolerate such an insane risk.Wtf are you talking about? It's a lot safer in pretty much every way compared to difluoroethane.
>>109061496https://www.youtube.com/watch?v=YUiMHXDjpWw
>>109061680Look up R290 refrigerant. Used widely in commercial buildings in the US
>>109061574Why are you using compressed air, meant for blowing dust out of electronics, near fire? It's like freaking out about water because you can drown in it.
It's because heavy molecules condense into a liquid at lower pressures than O2/N2/CO2/etc.So because it's a liquid it's a shit load more dense/compact/space-efficient.
>>109061574>Worst of all is fluoride.It gets way worse, the only upper limit to the monstrous molecules we can create is our imagination, and ability to safely work with it. There's a very entertaining blog called things I won't work with which is written by a chemist describing various such awful chemicals: https://www.science.org/content/blog-post/things-i-won-t-work-dioxygen-difluoride
>buy WOLFBOX MF100>never have to buy canned air againJust can't run it past a 2 or you need hearing protection.
>>109061708The quality varies a lot. Check youtube reviews.Wolfbox is good
>>109061496Because it becomes liquid without needing very high pressures.Actual compressed air would basically need to use mini scuba tanks. Heavy, expensive, and very dangerous if damaged/unmaintained.High power handheld blowers weren't viable until recently, and are still inferior in some applications.
>>109061708Get a powerful one in the 500W range. And earplugs.The handheld ones are shite (probably still better than the can, though).
>>109062471>offscreen leafblowerebin
>>109061496OH MY FUCKING GOD YOOO
>>109062630Based compu cleaner, had mine for 6 years now still good
>>109061633>nobody who actually understands how to use a pan seethes about itbecause the don't use teflon
>>109062643Kek I think of that motherfucker and say that everytime I see canned air
>>109062471what happens when you point this at someone's eye from a foot away?
>>109062675You figure out that you can finally stop carrying a dedicated eyeball removal tool.
>>109062675dry eye
>>109062375>things I won't work withChemists are pussies because they refuse to wear real PPE. I've worked at industrial plants with hundreds and hundreds of gallons of all sorts of poisonous/toxic/corrosive/caustic/volatile substances and intentionally reached my arm into them or spilt them down my front on several occasions. It's just I was wearing more than nitrile gloves and eyeglasses.
>>109062639is the leafblower in the room with you right now?https://www.youtube.com/shorts/QT3_lSJFJqo
>>109061496do retards really buy cans of air?just use a hair dryer with a nozzle at the cool setting
>>109062707>nitrile glovesGo ahead and use those when working with hydrofluoric acid.Fuming nitric acid and whatever shit you were working with is child's play compared to working with fluroide chemistry.You were not working with FOOF unless you were doing it experimentally in one of a handful of labs in the world most likely as part of your PHD.
>>109061523these really are violent
>>109061700they also sniff markers and glue, should we ban those too?
>>109061650Basically spray paint with no paint, right?>>109061680This is /g/, teh tech board. If you are scared of sigarette lighters, you're not supposed to be here.
>>109063234>Basically spray paint with no paint, right?Yes. Or deodorant, or most things really. It's just the propellant.
>>109061496Why not just a can that can be recharged with picrel?
>>109061567
>>109061496duster is compressed to a liquid state. you get roughly a 20x expansion ratio from liquid to gas. compressed air remains gaseous. you might get a 5-10x expansion ratio.
>>109063569The can would run out in a few seconds, and be much heavier to contain the extra pressure.
>>109062630>>109061708I'm just using some cheap chinese leaf blower. It's loud as fuck.
>>109063569because you're a dyel who wouldn't be able to pump it once
>>109063569You would need a scuba tank and pump rated for the high pressures. And you would have to pump until your nerdy noodle arms fall off.
i wonder why they don't use CO2 or nitrous or something.
>>109063719They want something that phase changes from gas to liquid easily at a not too high pressure but still expands a lot.Neither of your gasses would be very good.
>>109063652Why? Wouldn't it be the same pressure and heaviness as regular compressed air cans? Or is there zero compressed air cans available and everything is nerve gas OP is complaining about?>>109063658Your mother didn't complain about my pumping.>>109063696Yeah, but I'd rather pump my cans for free than to give money to shekelstein for pre-pumped cans and again for the priviledge of pumping iron in his gym.
>>109063719Vapor pressure 2stronk at room temp.
>>109061496what happens if you poke a hole in it
>>109061523I was mugged by one of these once.
>>109061496>>109061505>"air" isnt real
>>109063750>compressed air cansnormal air that you breathe is mostly nitrogen and oxygen. it doesn't turn into a liquid at normal temperatures. if you can turn a gas into a liquid, you can put a lot more material in the container than you could if you just tried to compress it as a gas. liquids are denser. liquid natural gas expands like 600x when it transitions from liquid to gas. you could fill a can with mostly liquid and then spray it out and have it expand, but you're not going to fill a little sheet metal can with 600 atmospheres of compressed air. a scuba tank is like 200 atmospheres of pressure.
>>109063863meant to include this pic
>>109063750The available refrigerant-based cans store a huge amount because the gas they use becomes a dense liquid at a little above atmospheric pressure. The can only needs to contain that small pressure. When you spray some out, a little bit of the liquid evaporates to restore the pressure.Regular air does not liquefy at pressures achievable for a can, meaning it must be stored in the WAY less dense gas form, and there's no upper limit to the pressure required which means you can only pack a small amount before the can explodes.
>>109063863>>109063893>pressurized air is not air>it's not even fucking gas, but liquidFuck these kikes selling one thing for another.>inb4 but you do want it this way instead of atual compressed gasIdc, should have said so on the label instead of pretending it is gas. Would have aved us all the trouble of dealing with this thread, if nothing else.
>>109063905>should have said so on the labelThey all do say what's in it somewhere on the label, but most people don't bother reading it.The only thing that comes out is actually gas, so it doesn't matter if it's liquid in the can. Unless you turn the can upside-down, then it sprays a jet of liquid refrigerant that will quickly freeze anything it touches. Good fun, but you're not supposed to do that.
>>109061633yeah learned this this hard way when i accidentally killed a couple of my birds
>>109063982>small printThat's fucking kikery right there. We should hang them and the politicians who enabled this shit in the first place. The sole purpose of it is to mislead people. Things should be fucking obvious. Whole fucking law profession is kikery: if we need someone who dedicates his life to understanding what is or isn't legal, we failed as a society. The average jow should know what is or isn't legal, how else is he expected to act within the law? This opaqueness only benefits low-moral kikes who are willing to go at the grey areas hoping they won't get caught. Torrent peoples contents to train AI, get a billion bucks, then pay off law enforcement to get off your back./rant
>>109063905ur not gonna believe what's inside of these
>>109064183Nitrous dissolves in fat under pressure, so when you spay it is not just the force against the nozzle that mixes the cream with air, but also tiny bubbles expand right in place.
>>109061650Are you sure you're not buying those fucking lighter refill cans lel
>>109061496phosgene you know lolbuy an electric handheld one
>>109062630Got this but prefer >>109061523 as it's cordless
>>109061708They're not good. Blowing on your keyboard with your mouth would be more effective.
>>109065168Kek I swear they're sold as compressed air dusters. But at the end of the day it's literally blowing a bunch of lighter refill gas on my computer inside a closed space.
>>109061523>Violent >It's black LMFAO
>>109065250The least race-obsessed American
>>109065250I didn't think of this at all for some reason.>>109062471I thought about getting this one but I'd only use it once a month to clean my PC so IDK.
>>109065850They're good for around the house type cleaning or stuff you would normally chase around with an air compressor hose. If all you do is clean PCs you can buy a case of duster for the price of a wolfmeme.
>>109061523
>>109061518But it sounds like a systemic name, and I don't understand those so it's scary, and because it's scary it must be dangerous.
>>109061708You get what you pay for. Those extremely cheap battery powered ones are useless. At least get the bigger 30 dollar+ Chinese one. I got the 100 dollar Datavac a few years ago and it works fine. You will probably be fine with the 30 dollar one though.
>>109061518>>109061633>>109061680Is this a Dupont or 3M shill or are people so delusional they think fluorocarbons are equivalent to vitamin pills and the alternatives are what's actually bad?
I bought a Wolfbox 100 after the last time we had one of these threads. Pretty cool. Though I do still buy the canned stuff for "precision" work and tight spaces.Also useful when I have to deal with bugs. If I can confine them to a closed space/bag, I suffocate them with it.
>>109067219>Also useful when I have to deal with bugsI've used upside down duster cans to freeze bugs to death if I don't have anything else on hand to deal with them.They actually sell special bug freezing sprays for this purpose.
>>109061496>Why is "compressed air" not actually compressed airWhy do you give a fuck! You're like that anon who is for some fucking reason fascinated with the fact that electricity production often involves heating water.
>>109067359Literally every method of power generation besides hydro, PV solar, and wind is just increasingly complex ways to boil water.
>>109061523>>109062471>>109062630>>109063654>>109067219ching chong.buy something worth having>pic relatedpaid $40 in 2012. use it almost daily. its a great duster and good for dusting yourself off after doing yardwork
Is it not possible to make a reusable non-electric air spray tool? Can I not just fuse a bicycle pump and plastic-bottle/balloon and tight nozzle? I only need enough power to blow some dust off my PC fans.I guess I'm just ignorant. Explain to me why this wouldn't work
>>109061496Fuck you mean? It's just bogstandard butane, propane, or R-134a.
>>109070569>buy something worth havingmake it for $40 then, the discussion ends there
>>109070898You can, it just wouldn't work very well and you'd have to pump it all the time.
>>109071412DataVac will last forever. Those chink blowers will last 5 years before the battery lasts you 1 min.
>>109062675it's equivalent to placing a 200 gram weight on your eye (plus the drying out)
>>109066609this will engage the jeetshaker protocol every quarter of dust removed from my pc and rape my eardrums
