I wish this short got more comments. So we could go searching for people blithering on about "...You didn't say °C or °F and you expect us to believe anything else you say‽ 🤣
@jtenosSkin tags can be removed gently by tying a piece of string really tightly around it. It will die off and fall away in a few days, no pain. My great grandmother swore that the thread had to be wool AND red. Colour was important. But I've used different colours and it still worked 😁
Great wording there: "boiling requires heat". Normally we think of it the other way around but the truth is that pressure, volume, and temperature are just in a constant battle for equilibrium.
@@ColonelSanders17Just basic knowledge for anyone who has physics in school. If you were referring to the robotics competition instead, than yeah, those are pretty cool, unless it is one for children were you buy a set with every component and just follow the receipt to build the robot like one of these Lego Technik toys and then „program„ it.
@@user-up7nb6id1f excuse the 200 or whatever remaining countries in the world that doesn't measure in feet and toe nails and farenheit and whatever. Metric is superior
Your typical aerosol can has two things in it. -The payload: the thing you actually want, which could be hair spray, contact cleaner, WD-40 etc. -The propellant: typically a refrigerant and its purpose is to create pressure to push the payload out of the nozzle. Those canned air dusters are basically aerosol cans with no payload.
@@Bowtieguy83Usually in applications other than a torch or gas grill, propane is referred to as R-290. Old refrigerators used to use propane as a refrigerant, and I'm not talking about ammonia chillers that used a propane flame to propel the ammonia reaction.
@@DutchmanAmsterdam actually it doesn’t, it just has a global warming potential a little over 100x that of CO2, all the ozone depleting refrigerants are banned from being manufactured in most of the world.
Yep! In fact, 1,1 Difluoroethane is (technically) listed as a refrigerant; R152a. So are the propellants used for blow-in insulation. So is propane (R290) butane (R600) and even water! (R718)
In our electronics shop in the Navy we had the stuff to clean contacts with. Although I think we used trichlorofluoromethane not this stuff. Anyways you could count on one of us sneaking up behind someone and spraying their butt with the upside down can. Good times.
We just used canned air as chewing gum remover at my first job. I think it was probably the same stuff, just marketed for chewing gum removal since not everyone knew you could use canned air up really close to freeze the gum and pry it off carpet.
@@gtb81. Also a more eco friendly alternative to them is a mix of R290 a R600a if you need it for refrigeration, I would add that most of those freez cans will use R290 as a propellant (yes, I know that they are flammable)
And that’s the same principle that Heat Pumps and Air Conditioners work on to move heat from one place to another using a refrigerant and compressing it.
I don't think it is I'm pretty sure it was made because everything else was. Or at least it ain't as bad as the other stuff. And it don't burn away the ozone.
Not this stuff, you’re thinking of chloroflourocarbons. This stuff started being used relatively recently when all the regulations around CFCs came out. And they aren’t technically a greenhouse gas as much as they are an ozone depleter
For those curius, Liquids/Gases have "Saturation" pressures/temperatures. A saturation temperature is the temperature at which a liquid will boil at a given pressure (constant pressure with change in temperatue), and a saturation pressure is the pressure at which a liquid will boil at a given temperature (constant temperature witha change of pressure). The reason something which is normally a gas can exist inside a can without being cold (low temprature) is because it is being held at a pressure above it's saturation pressure, therefore leaving it at a liquid at room temperature. Diflouroethane has a saturation pressure of just under 90psi, or 6x atmospheric pressure.
One time when I was new to welding, I got pissed off because my metal was too hot and I would burn holes. I got one of these cans and flipped it and emptied it onto the metal. It shocked me how it turned ice cold almost instantly. That's when I realized how cold they can get
Fun fact any kind of pressurized vapor which is shot from a can will start cooling a lot, these due to the relation between pressure volume and temperature.
@@hantrio4327Yes they do. Temperature is a measure of average kinetic energy; and kinetic energy in gases is caused by collisions between particles. When there is a larger volume the space between particles is larger and the collisions are fewer, leading to decreased temperature (and conversely, decreasing volume of a gas will always lead to increasing temperature)
@@wyattk300 there are attractive forces as well. Just read about the Joule-Thomson effect and you will see that helium for example has a negative JT-coefficient at standard conditions
Spraying out the contents of one single can of that volatile poison emits greenhouse gases equivalent to burning five gallons of gas in a car (GWP 124). In Europe the duster-cans use a different mixture which emits 1:10th of that (GWP 8~10.4).
This stuff also makes the best spider killers. Near instantaneously freeezes them. You can also control spiders with the airflow to keep them from running, also no mess since they just freeze up. No squishing goo and whatnot.
I was once drunk in college and thought to cool down my lava hot microwave burrito with canned air. Turned it upside down, sprayed it. Ahh, cool to the touch. Also incredibly bitter, so into the garbage disposal since I thought I almost poisoned myself . Not sure if it was the liquid itself or a bittering agent, but lesson learned, just stick it in the fridge instead 😂
Gotta get the baush and lomb commercial canned air. No bitterant. I refuse to use any with bitterant cause it gets on your keyboard when cleaning then tastes nasty when you bite your nails.
@@beccak8166 thats not correct A)The canned air relies on the fact that a sudden decrease in pressure will cause the temperature to drop, especially when it transitions from liquid to gas. B)Ice/salt on the other hand just relies on the fact that salt dissolving in water allows it to reach a lower temperature before freezing. It not the melting of the ice that causes a "lower temperature" In example B, the temperature will never be able to go lower than the temperature of the ice itself. In example A on the other hand, the temperature will drop significantly lower than any component of the system. Completely different principals, both fun to learn imo
@@anastasisparastatidis5479 you're wrong about the ice/salt (: the endothermic processof melting creates a below freezing temp. It can get as low as -3° C because of the endothermic properties of melting. You should look it up. They also explain in the vid we just watched about the sudden drop in pressure causing boiling, an endothermic process
We used to use it to make our voices deeper like the opposite of Helium. That was before they added bitterant because people would huff it for the intoxicating effects.
There’s a difference between from that and -40 air temp. In -40 air temp you can last like 1-3 minutes without getting frostbite. I’d know cause my city gets down to -40 every winter for about a week. Under -50°C with wind chill at times Still expected to be at school though
I was having the same thought. I walk into a -40 freezer several times a day at work and it's not that bad provided you're not in there for more than a minute.
my friends gave each other frostbite for fun once. We didn’t turn the can upside down so maybe it wasn’t as cold as it could’ve gotten, but skin was sloughing off for about 3 weeks. It was only a small spot though.
There is a second chemical added to this product which is extremely bitter in order to discourage people from deliberately consuming (inhaling) this stuff. You can get special cans of this stuff without the additive, for people who really really can't have any residue left on whatever they're spraying. (The consumer grade stuff you find in stores has the bitter additive.)
Years ago I bought a can of "air" with the idea of spritzing myself to stay cool and dry on my summer commutes between Jersey City and Manhattan. Only after the purchase did I read the label and discover that the contents were flammable.
@@v1Broadcaster I literally had to pull my father-in-law off of my father because he was kicking him and there was a blood coming out of his face because he consumed it fuck air duster
They put bitterant in it to help avoid this now. I’m really sorry for your loss, and I hope the preventative measures they used can help avoid some future losses.
Friend sprayed a spot on my arm in high school, about 2004ish. I remember how much it burned. The feeling never really returned to normal in that spot, everything feels dull there.
@@mrmichrom8553 Refrigerants and propellants that are detrimental to the ozone have been banned for a long time. Pretty much any gas that isn't super volatile or toxic can be used as a propellant
Notice how the can also accumulate ice on itself during use? That's because pressure and temperature are inherently related, and by lowering the pressure, you're also taking away temperature. You describing it as boiling is correct, but it's not off the heat of the room / glass. It's off the atmospheric pressure. The heat disruption is a byproduct.
I work in a casino and we had canned air on hand to deal with shuffler machine malfunctions. One day my boss thought it would be funny to turn the can upside-down and hosed me on the tramp stamp. I wheeled around and tagged him with an elbow, turned his nose into a leaky tomato, and never got in trouble.😂
Fun fact: we had these in an electronics department I used to work in. We'd use the upside-down spray to remove what were supposed to be permanently adhesive price labels when they needed replacing. When frozen, you could just take them right off.
I used to take it and freeze grasshoppers, they turn bright red (i guess from a panic response in the enzymes?) Same under fire, which i found really interesting as a much younger lad
I would also recommend you don't turn it upside down and spray. Most companies adds nasty taste into the liquid to stop kids from huffing. Found that out the hard way when I was having fun making the can turn super cold. Mouth tasted nasty for hours.
This is also why double boiler works and AC system works (part of the story for AC) and why water freezes in space. The specific energy required for the phase change is so great compared to that required to change the material's temperature that you basically get a negative feedback loop. The materiel boils, this cools it below the bubble point so it stops boiling, then it warms up from the surroundings, so it keeps boiling, and so on. The equilibrium is the boiling point. If we take the example of water in space there is little to no energy entering the system so eventually it will become cold enough to freeze. Pretty cool how this aspect of thermodynamics can be used in so many ways!
This helped answer a question I had. I used to wonder if liquids with boiling points below room temperature could self cool since they're losing heat through boiling but also gaining heat through the surrounding warm air. Now that I think about it, it probably should have been obvious. Anyway, clearly it can indeed self cool significa1ntly because difluoroethane actually boils at a significantly warmer temperature (still below freezing)
I know a girl who died doing this. She was getting "high" off air duster and passed out with it in her mouth . It turned upside down, and when they found her, she sprayed, upside down, the whole can into her throat.
The only difference between canned air and freeze spray is the length of the straw in the can. Short straw in can = canned air. Long straw in can = freeze spray. Either one can be used as the other by turning the can upside down.
R152a is a refrigerant it is on A2 category of safety which means that it is nontoxic flammable refrigerant its boiling point is about -24⁰C which is ideal for use instead of HFC 134a it has also a low GWP of 124.
My professor used this method for our microcontroller labs for rapidly decreasing temps on the temperature sensors. It was fun seeing it shoot to -temps back and climb back to room temp!
Apart from the frost bite they also add Bitrex to these cans to avoid inhalation abuse. So if you play with this be ready for your face and hands to taste absolutely disgusting for a while. You'll notice it if you lick your lips or eat something.
This is a nice trick to cool down your radiator if it’s overheating and you need to get somewhere quick, I had a shit box for a few years and I would keep two cans of the stuff under my seat in case I was on the way to work and it overheatedonly takes about three minutes to cool it down
This is very similar to what happens with the refrigerant used in HVAC systems. If you have the tank right side up it comes out as a gas and upsidedown it'll spray liquid refrigerant. (Do not attempt this, the CAA does not let you leak refrigerant into the atmosphere) The liquid refrigerant gets VERY cold.
Also good to know that at least some of these use flammable gasses, I’ve seen a case where someone sprayed this can on their pc. The fan started spinning and the power this created likely made a spark and lit up a big fireball in his room. Watch out with this stuff, short amounts at a time and use like the instructions specify. If you do wanna mess around do it outside at least.
Favorite thing about -40 is you don’t need to say the scale. It’s the same for Celsius and Fahrenheit.
You also automatically know it's not Kelvin.
@@justforplaylistsOr Rankin. If you’re the sole person who uses Rankin :D
The supreme ultimate temperature
Til this.
I wish this short got more comments. So we could go searching for people blithering on about "...You didn't say °C or °F and you expect us to believe anything else you say‽ 🤣
Frostbite in a can, got it. I'll remember just in case I need frostbite.
I love some good frostbite after a long day of work.
My cousin took a hit of the can and was high asl for hours
Very useful for freezing off skin tags.
This isn’t giving you frost bite
It’s more for the glue sniffers who think spraying the liquid on people is funny. Definitely had a few in school.
Cousin blasted my arm and said "its just air" when i was in pain for an hour or so.. don't do that.
Your cousin is probably the type to read the warning label and think it's the instructions.
Can't wait for them to win a Darwin award.
Hahahahaha funny cousin xD
@jtenosSkin tags can be removed gently by tying a piece of string really tightly around it. It will die off and fall away in a few days, no pain. My great grandmother swore that the thread had to be wool AND red. Colour was important. But I've used different colours and it still worked 😁
yea we used to freeze beetles and roaches with this
do it to them back and see if they like "just air"
Great wording there: "boiling requires heat". Normally we think of it the other way around but the truth is that pressure, volume, and temperature are just in a constant battle for equilibrium.
Well not really. Temperature is just pressure in a certain volume of a certain material of a certain shape.
Sounds like an arguement between Eddison and Tesla.
Used this trick to cool motors during robotics competitions.
Dope
Same!
Resourceful
@@ColonelSanders17Just basic knowledge for anyone who has physics in school.
If you were referring to the robotics competition instead, than yeah, those are pretty cool, unless it is one for children were you buy a set with every component and just follow the receipt to build the robot like one of these Lego Technik toys and then „program„ it.
Just hope you didn't do it too much. Breathing it in is not good for you.
Also -40 is when Finnish people might say "It's cold outside, better put a 2nd layer on"
-40°F or -40°C?
@@FauxFaFox -40 is same for both
@@FauxFaFoxare you educated yet?
@@user-up7nb6id1f excuse the 200 or whatever remaining countries in the world that doesn't measure in feet and toe nails and farenheit and whatever. Metric is superior
@@V77710nah freedom units all the way
Your typical aerosol can has two things in it.
-The payload: the thing you actually want, which could be hair spray, contact cleaner, WD-40 etc.
-The propellant: typically a refrigerant and its purpose is to create pressure to push the payload out of the nozzle.
Those canned air dusters are basically aerosol cans with no payload.
Typically its propane, like spray on grease ie Pam
@@chadwick1084 propane? like the gas you use in many grills?
@@Bowtieguy83Usually in applications other than a torch or gas grill, propane is referred to as R-290. Old refrigerators used to use propane as a refrigerant, and I'm not talking about ammonia chillers that used a propane flame to propel the ammonia reaction.
@@chadwick1084 isobutane is also really common
@@oldsguy354some refrigerators, often on RVs use propane tanks to refrigerate I believe
And that's how ice magic works
Exactly
Its also how your refrigerator works... so I supposed your leftovers are cooled by ice magic.
Its called nice magic omg!!!!!
Depends some ice powers are made from absorbing the energy.
@@Jacob-yg7lz that's also why the stuff in air duster is literally refrigerant
Ive been using this stuff to kill millipedes due to an infestation in my garage. Raid doesnt seem to work on them, but -40 degree liquid does
Liar there’s no way raid doesnt work on them
@@JaKingScomez what do they have to gain from lying about that?
@@JacubWhite38 you dont need to gain anything from lying
That's expensive. Insects breathe through their skin so just spray them with regular surface cleaner and they suffocate quickly.
@@JaKingScomezare you a pathological liar or something 😂😂
It's also wildly flammable, almost explosive.
also not great to breathe in
Also destroys the ozone layer, probably.
This stuff is so useless.
@DutchmanAmsterdam Not even close to useless. You might want to do some research how fast that air is moving
@@DutchmanAmsterdam actually it doesn’t, it just has a global warming potential a little over 100x that of CO2, all the ozone depleting refrigerants are banned from being manufactured in most of the world.
@@DutchmanAmsterdamprobably? it's a yes or no my guy 😂
So your telling me I shouldn’t continue to shoot the liquid directly into my mouth
Probably yhea dont do that I used to all the time the highit's not worth the risk trust me
Better do nitrogen son, but don't do it straight from the can please
Nitrous balloons, if you're doing that.
@@sanpepsiman1277*better not be instacarting someone in WY dusters boi😂
@@sanpepsiman1277I think you meant nitrous oxide lol, not nitrogen.
It's a refrigerant/ solvent. 1,1,1 trichloroethane was banned but it made the best cleaner/degreaser money could buy and it was safe on copper.
That's how refrigerators work
More or less, yep! Latent heat of vaporization
And air conditioners
@@romancenturion3507 indeed. Same thing in reverse:)
Yep! In fact, 1,1 Difluoroethane is (technically) listed as a refrigerant; R152a. So are the propellants used for blow-in insulation. So is propane (R290) butane (R600) and even water! (R718)
@@romancenturion3507 In a car, yes. I'm not sure about a house. I think they just use heat pumps, but I'm not sure.
In our electronics shop in the Navy we had the stuff to clean contacts with. Although I think we used trichlorofluoromethane not this stuff. Anyways you could count on one of us sneaking up behind someone and spraying their butt with the upside down can. Good times.
Hmmm Navy and butt stuff,
Why am I not surprised 😅
Of course it was the navy
And cancer after... sweet
Yeah tricolor was used in the 60s. 😊
Yea every can of air I remember using was tetrofluoroethane. I used to use it to rapidly cool my drinks at work 😂
I feel like I’m walking on sunshine
Just gonna get a little high
oh memories...i think
My thoughts exactly 😂
I saw that episode
Actually killing braincells permanently, I regret the short amount of time I abused this stuff. No good 🙅
My first job had chewing gum remover. I used almost every can just playing with it it was too fun to resist
We just used canned air as chewing gum remover at my first job. I think it was probably the same stuff, just marketed for chewing gum removal since not everyone knew you could use canned air up really close to freeze the gum and pry it off carpet.
1,1-Difluoroethane also know as R152a, nearly all those cans use some sort of refrigerant and not air.
R152a can also be used as a replacement for R12
@@gtb81. Also a more eco friendly alternative to them is a mix of R290 a R600a if you need it for refrigeration, I would add that most of those freez cans will use R290 as a propellant (yes, I know that they are flammable)
This man just solved about 32 questions I've had sitting around about these cans all my life. Still have a few left unanswered though.
What’s unanswered? I’ll try to get to those too.
Also great to find dead shorts in electronics
And that’s the same principle that Heat Pumps and Air Conditioners work on to move heat from one place to another using a refrigerant and compressing it.
Ugh.... The fact that my old friends and I would huff that shit is absolutely insane!! I can feel the brain cells dying by just remembering it... 😅
They add a second chemical to this stuff now to discourage people from deliberately inhaling it.
How was it 😂
@@Jewlawphinhonestly I did the same and it was horrible, I huffed three cans by myself in one night and I thought I was gonna die
TWU
Who do you vote for?
I remember having canned air fights with my brother and the absolute war crime it was to see it turned upside down when rounding a corner
It's a powerful greenhouse gas too.
I don't think it is I'm pretty sure it was made because everything else was. Or at least it ain't as bad as the other stuff. And it don't burn away the ozone.
It is. Not sold in sweden any more.
Oh no! Anyway.
So is every time you breath. Grow up.
@@JOHN-um2"wah wah wah, stop caring about the world you'll live in tomorrow"
Not this stuff, you’re thinking of chloroflourocarbons. This stuff started being used relatively recently when all the regulations around CFCs came out. And they aren’t technically a greenhouse gas as much as they are an ozone depleter
For those curius, Liquids/Gases have "Saturation" pressures/temperatures. A saturation temperature is the temperature at which a liquid will boil at a given pressure (constant pressure with change in temperatue), and a saturation pressure is the pressure at which a liquid will boil at a given temperature (constant temperature witha change of pressure). The reason something which is normally a gas can exist inside a can without being cold (low temprature) is because it is being held at a pressure above it's saturation pressure, therefore leaving it at a liquid at room temperature. Diflouroethane has a saturation pressure of just under 90psi, or 6x atmospheric pressure.
turns can upside down
Behold! my freeze ray!
It also gives you an awful headache, and brain damage if inhaled
Used a few of those "air" cans in that manner to shrink down some new control arm ball joints that were .015" oversized.
One time when I was new to welding, I got pissed off because my metal was too hot and I would burn holes. I got one of these cans and flipped it and emptied it onto the metal. It shocked me how it turned ice cold almost instantly. That's when I realized how cold they can get
Fun fact any kind of pressurized vapor which is shot from a can will start cooling a lot, these due to the relation between pressure volume and temperature.
Not every gas cools when it expands
@@hantrio4327Yes they do. Temperature is a measure of average kinetic energy; and kinetic energy in gases is caused by collisions between particles. When there is a larger volume the space between particles is larger and the collisions are fewer, leading to decreased temperature (and conversely, decreasing volume of a gas will always lead to increasing temperature)
@@wyattk300 there are attractive forces as well. Just read about the Joule-Thomson effect and you will see that helium for example has a negative JT-coefficient at standard conditions
I used to freeze ants with this stuff as a kid thinking I was Mr freeze 😅
Also known as r152a, it's a refrigerant used in some coolers and freezer applications
I used to freeze my finger tips as a kid , fun times
Yeah idk why people are saying it hurts or gives you instant frostbite. I remember being scared and my cousin just sprayed her hands like nothing lol.
@@HIRAMECLARKEHOPS if you hold it upside down and spray it ,it freezes things
Spraying out the contents of one single can of that volatile poison emits greenhouse gases equivalent to burning five gallons of gas in a car (GWP 124). In Europe the duster-cans use a different mixture which emits 1:10th of that (GWP 8~10.4).
In high school teachers would freeze Locke’s and smash them off when students forgot their combination
This works with all gases. This substance is used simply because it is more easily compressible than others.
“This stuff is called Computer Duster, and as the can says on the front has a compressed gas inside”
This stuff also makes the best spider killers.
Near instantaneously freeezes them. You can also control spiders with the airflow to keep them from running, also no mess since they just freeze up. No squishing goo and whatnot.
I was once drunk in college and thought to cool down my lava hot microwave burrito with canned air. Turned it upside down, sprayed it. Ahh, cool to the touch. Also incredibly bitter, so into the garbage disposal since I thought I almost poisoned myself . Not sure if it was the liquid itself or a bittering agent, but lesson learned, just stick it in the fridge instead 😂
Gotta get the baush and lomb commercial canned air. No bitterant. I refuse to use any with bitterant cause it gets on your keyboard when cleaning then tastes nasty when you bite your nails.
@@Falcodrinthought you were going to say that you huff it 😅
@@Falcodrin Maybe you shouldn't bite your nails. Nails can be dirty
a great demonstration of the evap portion of a refrigerant cycle
This is so cool!!!! Reminds me of how a salt/ice system can get below freezing (:
They are completely different, but yes, both get cold
Although the canned air thing gets much much colder
@@anastasisparastatidis5479 not completely different, as both rely on endothermic properties of melting/boiling to make a system colder
@@beccak8166 thats not correct
A)The canned air relies on the fact that a sudden decrease in pressure will cause the temperature to drop, especially when it transitions from liquid to gas.
B)Ice/salt on the other hand just relies on the fact that salt dissolving in water allows it to reach a lower temperature before freezing. It not the melting of the ice that causes a "lower temperature"
In example B, the temperature will never be able to go lower than the temperature of the ice itself. In example A on the other hand, the temperature will drop significantly lower than any component of the system. Completely different principals, both fun to learn imo
@@anastasisparastatidis5479 you're wrong about the ice/salt (: the endothermic processof melting creates a below freezing temp. It can get as low as -3° C because of the endothermic properties of melting. You should look it up. They also explain in the vid we just watched about the sudden drop in pressure causing boiling, an endothermic process
@@anastasisparastatidis5479 melted ice and salt can get at low as -3° celcius, you should look it up, its pretty cool. I studied chemistry in college.
This is also how hvac and refrigeration works
So good content. Love it.
I use this to freeze stuck bolts and screws. It breaks them loose like a champ.
That sir.. Is called a duster
We used to use it to make our voices deeper like the opposite of Helium. That was before they added bitterant because people would huff it for the intoxicating effects.
R-152a. 138 times worse than CO2 for global warming (GWP)
Expansion also requires heat, normal sprays used normal can also freeze things
There’s a difference between from that and -40 air temp. In -40 air temp you can last like 1-3 minutes without getting frostbite. I’d know cause my city gets down to -40 every winter for about a week. Under -50°C with wind chill at times
Still expected to be at school though
I was having the same thought. I walk into a -40 freezer several times a day at work and it's not that bad provided you're not in there for more than a minute.
my friends gave each other frostbite for fun once. We didn’t turn the can upside down so maybe it wasn’t as cold as it could’ve gotten, but skin was sloughing off for about 3 weeks. It was only a small spot though.
My brother once sprayed it on my food and I almost threw up, I can still taste it from just the memory
There is a second chemical added to this product which is extremely bitter in order to discourage people from deliberately consuming (inhaling) this stuff.
You can get special cans of this stuff without the additive, for people who really really can't have any residue left on whatever they're spraying.
(The consumer grade stuff you find in stores has the bitter additive.)
@@juliavixen176 yeah I know, that’s why he did it, the chemical is Bitrex
Yeah. It’s used in electronics repair to find faults (mainly shorts) quickly
Years ago I bought a can of "air" with the idea of spritzing myself to stay cool and dry on my summer commutes between Jersey City and Manhattan. Only after the purchase did I read the label and discover that the contents were flammable.
Same energy as buying a bag of nuts and only realising it contains nuts after reading the allergy notice.
Also its flammable, learned the hard way
similar how air-conditioning works
I frekkin love your channel and your levels
Now, make a freezer with it. ❤
We actually use this at robotics tournaments a lot when we need to quickly cool off our motors. It’s not fun when you get sprayed by it though
People abuse these as drugs
**Use.
Don’t do drugs but as for anything in life don’t knock it until you try it. Also support helplines are easy to find
@@v1Broadcaster I literally had to pull my father-in-law off of my father because he was kicking him and there was a blood coming out of his face because he consumed it fuck air duster
@@7-ten whatever you know what I meant
@@v1Broadcaster hold up Wait a minute something ain't right
One guy from Poland accidentally blew up his flat when he used too much of such duster
Some good ol army buddies stuck these in each of my ears, upside down, and sprayed.
I still have problems.
Love the outreach you people are doing with this channel
Its also insanely flammable...
It’s also extremely flammable. Found that out the hard way when spraying near a candle. Thankfully did not set the room on fire.
people use this stuff to get high i know because my uncle died when he tried inhaling it while driving and crashed into a tree
That's.. sad
@@kevinf8439 don't be sad the man was an ass hole, so much so that someone threw a can of duster in his coffin
I'm sorry for your loss. I don't comprehend how someone could try and do this while driving unless it was suicide.
@@Melanie16040 it's More common than you would think druggies will do crazy things
They put bitterant in it to help avoid this now. I’m really sorry for your loss, and I hope the preventative measures they used can help avoid some future losses.
Friend sprayed a spot on my arm in high school, about 2004ish. I remember how much it burned. The feeling never really returned to normal in that spot, everything feels dull there.
I found out it can give you frostbite when it gave me frostbite.
The upside air can trick was always useful especially when snapping a bad CD you didn’t pay enough for to justify keeping
Sorry i dont understand what is this ?? I mean i get the part it super cold but then what it used for??
Usually blowing dust out of small crevices.
Destroying the environment, mostly.
When it's not upside-down it doesn't get as cold, but it is used for cleaning dirt/dust from hard-to-reach areas like inside computers/keyboards
@@mrmichrom8553 Refrigerants and propellants that are detrimental to the ozone have been banned for a long time. Pretty much any gas that isn't super volatile or toxic can be used as a propellant
Notice how the can also accumulate ice on itself during use? That's because pressure and temperature are inherently related, and by lowering the pressure, you're also taking away temperature.
You describing it as boiling is correct, but it's not off the heat of the room / glass. It's off the atmospheric pressure. The heat disruption is a byproduct.
I work in a casino and we had canned air on hand to deal with shuffler machine malfunctions.
One day my boss thought it would be funny to turn the can upside-down and hosed me on the tramp stamp. I wheeled around and tagged him with an elbow, turned his nose into a leaky tomato, and never got in trouble.😂
Fun fact: we had these in an electronics department I used to work in. We'd use the upside-down spray to remove what were supposed to be permanently adhesive price labels when they needed replacing. When frozen, you could just take them right off.
“This stuff is called canned air” proceeds to hold up can that does not have the word “air” anywhere on its label.
It's just what it's called. Similar to how we call duct tape, duck tape even though duck is actually a brand name
I used to take it and freeze grasshoppers, they turn bright red (i guess from a panic response in the enzymes?) Same under fire, which i found really interesting as a much younger lad
I would also recommend you don't turn it upside down and spray. Most companies adds nasty taste into the liquid to stop kids from huffing. Found that out the hard way when I was having fun making the can turn super cold. Mouth tasted nasty for hours.
The frost of this is very good to get rid off warts
This is also why double boiler works and AC system works (part of the story for AC) and why water freezes in space.
The specific energy required for the phase change is so great compared to that required to change the material's temperature that you basically get a negative feedback loop. The materiel boils, this cools it below the bubble point so it stops boiling, then it warms up from the surroundings, so it keeps boiling, and so on. The equilibrium is the boiling point. If we take the example of water in space there is little to no energy entering the system so eventually it will become cold enough to freeze.
Pretty cool how this aspect of thermodynamics can be used in so many ways!
I remember using this trick to cool down our motors for vex robotics, fun times 😂
I used this to freeze a wart and remove it. It worked like a charm!
my dad had these and as a kid I used to play with it while he wasn't looking
This helped answer a question I had. I used to wonder if liquids with boiling points below room temperature could self cool since they're losing heat through boiling but also gaining heat through the surrounding warm air.
Now that I think about it, it probably should have been obvious. Anyway, clearly it can indeed self cool significa1ntly because difluoroethane actually boils at a significantly warmer temperature (still below freezing)
Thanks for the mad scientist laughter dilled ideas.
I know a girl who died doing this. She was getting "high" off air duster and passed out with it in her mouth . It turned upside down, and when they found her, she sprayed, upside down, the whole can into her throat.
No way
thats what we used to cool down our motors in robotics back in high school... good times
I used to huff that as a teen. That shit gets so cold that your lips will freeze to the plastic lip of the bottle. Im so glad it didnt kill me
You were actually getting high off your own slow death!
As I understand it also has kidney toxicity.
Fun fact! -40F is the same as -40C!
The only difference between canned air and freeze spray is the length of the straw in the can. Short straw in can = canned air. Long straw in can = freeze spray. Either one can be used as the other by turning the can upside down.
R152a is a refrigerant it is on A2 category of safety which means that it is nontoxic flammable refrigerant its boiling point is about -24⁰C which is ideal for use instead of HFC 134a it has also a low GWP of 124.
My professor used this method for our microcontroller labs for rapidly decreasing temps on the temperature sensors. It was fun seeing it shoot to -temps back and climb back to room temp!
Huh, o never knew why it sprayed frost out when held upside down. Thanks for explaining
man this just blows me away
Used frostbite from this liquid to treat my warts. Cool stuff
Apart from the frost bite they also add Bitrex to these cans to avoid inhalation abuse. So if you play with this be ready for your face and hands to taste absolutely disgusting for a while. You'll notice it if you lick your lips or eat something.
Yes, it's great for removing warts. Do with that what you will.
And the cold spray is tetra fluoride ethane (or something similar) that goes by the everyday name as R134a refrigerant
and that phase change is how AC's work
This is a nice trick to cool down your radiator if it’s overheating and you need to get somewhere quick, I had a shit box for a few years and I would keep two cans of the stuff under my seat in case I was on the way to work and it overheatedonly takes about three minutes to cool it down
This is very similar to what happens with the refrigerant used in HVAC systems. If you have the tank right side up it comes out as a gas and upsidedown it'll spray liquid refrigerant. (Do not attempt this, the CAA does not let you leak refrigerant into the atmosphere) The liquid refrigerant gets VERY cold.
I remember they're effective in cooling/drying glue faster; if you can't wait for glue to stick spray a bit of it, it will adhere.
Also good to know that at least some of these use flammable gasses, I’ve seen a case where someone sprayed this can on their pc. The fan started spinning and the power this created likely made a spark and lit up a big fireball in his room.
Watch out with this stuff, short amounts at a time and use like the instructions specify.
If you do wanna mess around do it outside at least.
I used one of those to freeze warts off when I was a kid
and that controlled frostbite is also excellent for treating skin blemishes.