Dont Pour Gunpowder On A Hot Stove


The King of Random


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what's up guys welcome back to the king of random labs where I've got a little experiment cooking up for a today now the inspiration for this experiment today goes back to the video where we made the pull-tab smoke grenade you might remember I cooked up a huge batch of this rocket fuel to the point where it was spilling over the edges and almost making contact with the burner itself that made me a little bit nervous because there was a chance the whole thing could go up in my face at one so the purpose of this experiment is to find out just that how much heat can this mix your take before it will spontaneously burst into flames oh and we're going to test gunpowder too now if you ever stop to read the labels of any pyrotechnic composition including fireworks you'll probably see the basket to store it in a cool dry place away from any flames heat or sparks but the question really is how hot is too hot I mean say you have this stuff sitting in your garage in the middle of summer and gets incredibly hot in there at what temperature can we reasonably expect this stuff will go up not really sure let's find out and the other question my mind is what exactly happens to gunpowder when you put on the stove does it melt together does it go off in flames or to sit there and do nothing let's get cooking and find out so here's what we're working with today I've got a 20 gram mix of our rocket fuel because when this goes off it's going to generate a lot of smoke and I want to limit it to 20 grand batch we've also got some pyro decks muzzleloading propellant as well as some green dot smokeless gunpowder for reloading cartridges let's start off with the rocket fuel first we'll throw this white powder in a pan heat it up until it caramelizes it and keep cooking it until it burns too Chris I've also got an infrared thermometer so we can keep track of the temperature as well as an IR camera so we can actually see the heat changes taking place now that's going to take just a minute for this to start to warm up if I use a spatula we can help disperse the heat a little more evenly what's interesting is this starts off as a white powder but the sugar begins to caramelize and turn it into a syrup and observe the potassium nitrate into it and what the hits that consistency we just back away slowly and let it cook electricity buzzing bring out our temperature gauge here we're starting off at about 76 degrees Fahrenheit that's about room temperature right now if we go over the burner showing about 74 as well so the heat is just coming on to that all right so it's in about forty-five seconds we're up to 85 degrees Fahrenheit the burner is now at once there too so we're definitely on the right looking good infrared cameras rolling at this point we just buckle down and watch but there's usually about the point where I start getting nervous because when I see the stuff burning it makes me feel like it is going to burst into flames alright we're up to 350 now there's quite a bit of smoke coming off of this right now a lot of little black spots where you can see everything's been charged and it almost looks like this composition is cooking and drying out the bubbling is starting to reduce now the burner itself is over 500 degrees so it shows there is still quite a bit of heat that can go into that pot so I think we still have a chance for getting this to go off here oh we're up to 400 now the temperature is starting to rise you can see all the bubbling stopped it's not gooey and bubbly like it was before it's pretty much flattened out for the most part looks like a burnt oatmeal cookies now I've never played with rocket fuel that was hot before there's a chance that this could combust very vigorously if it starts from the bottom it could actually explode out of the pot and spew rocket fuel all over my workshop might be a good time to put on the lab jacket checking what the temperature gauge it seems to have leveled off around four hundred and twenty degrees Fahrenheit it's not climbing much more than that but this whole thing is nearly black at this point black and very burnt brown there's no bubbling there's no movement there's no hissing it's just sitting there stagnating and starting to wonder if exceeding even go off at all of course if it doesn't that would be the best thing that could happen to us because we don't want this stuff going off lower cooking it doing so you know what I'm going to do is grab a fork and let's poke this thing and flip it over like a pancake and cook both side oh wow very late and crispy almost like a meringue so interesting update guys it's been about 15 minutes we've been cooking this thing on high heat we've got up to 430 degrees Fahrenheit and instead of combusting in the giant ball of flames instead of birth itself into a black ash and at this point I'm not even sure if it's still on wall so why don't we take a spoonful of it and apply it directly to the burner itself all right here we go Oh giggle off a little bit interesting ok so Wow and come look at the residue here it's got kind of son victims gummy syrupy residue I'll look up in the ceiling you can actually see all the smoke clouds lingering in the ceiling here now we got this mixture up to 400 degrees Fahrenheit and it would not go off but when we applied it directly to the burner it did go off relatively quickly the difference is the burner is 720 degrees Fahrenheit well the pot itself was just 400 the auto-ignition temperature must be somewhere in between that I guess the lesson to learn from this is if you're cooking this stuff make sure it doesn't fall on the burn all right so just for fun let's go ahead and pour the rest sweet look at the smoker role in feeling interesting update guys the syrupy stuff stuck to the burner isn't a sugar composition at all it's actually molten potassium nitrate we can tell that because we use something like a paper towel to wipe it up it instantly begins to combust all right guys we got our workstation cleaned up and we did learn a few things but I'm still not entirely satisfied I want to see the stuff burst into flames as the temperatures still rising so this time I'm gonna make a new batch a little bit smaller and this time I'm going to build it directly on the burner itself it's amazing that haven't gone off 820 degrees Fahrenheit I didn't know the burners get that hug there goes oh wow that was amazing that was amazing we got up to eight hundred and thirty-five degrees Fahrenheit and then it spontaneously combusted that one off really fast it's like sitting all these little fireballs in every different direction and that went off so fast I really wasn't expecting it by this point I was almost giving up on it actually happening and then boom there goes I have to admit that did take me a little bit off guard lots of fun lots of fireballs lots of smoke that's really cool that was amazing who got up to eight hundred and thirty-five degrees Fahrenheit and then it spontaneously combusted that one off really really fast and look at the black ash residue if you look closely you can still see the coals are glowing red down there what do that if I blow on it that is some of the glowing carbon left over from that sugar now that's up to temperature let's put it on a little bit more and see if we have the same reaction interesting that's very encouraging guys we actually had to max out this burner get up to eight hundred and thirty degrees Fahrenheit before the composition actually went off so it makes me a lot more confidence during this thing up because you really shouldn't be going over about 200-250 at most there's a really nice wide range of butter there when cooking up our Rockets cool so now it makes me wonder how would gunpowder react let's play up this workbench and try that next for our second experiment here we're going to try pyro decks I've got my burner back down to 420 degrees Fahrenheit right now I'm not sure if that's too hot or not so I'm just going to take a small spoonful of this sprinkle a few grains in the center do it happen it's already starting to smoke a little bit 590 Fahrenheit we're at 660 Fahrenheit and climbing it's smoking pretty good though isn't it feel like that's got to go off in an instant any minute now 670 so this is the pyrotechnics we've maxed out at about 900 degrees Fahrenheit which is way higher than this thermometer can go and apparently is as high as this can go now in looking at the powder it's no longer a powder it's much down and turned into some kind of a sludge a black sludge I don't know if it's still flammable or not so to kill this stuff off I'm going to take a plan from a BBQ matter and a field still at night here we go well more truth yep still works still works apparently our pyrotechnics will not light off even at 800 to 850 degrees Fahrenheit we had to go to the flame to get that to work next up smokeless gunpowder same routine as before we're starting the burner at five hundred and eighty degrees Fahrenheit and working our way up so we're actually down to about 530 Fahrenheit here let's see how this works out a bit of powder in the middle and there goes wow that was instant and notice there is no smoke that is smokeless that's actually really cool so smokeless gunpowder apparently will take off a lot faster boom and look no smoke no smoke no residue just turn and burn and I could do this all day long so just from this small experiment so far I'd say that smokeless gunpowder is a lot bigger fire hazard than any of the other compositions we've played with so far so I let our burner cool down to two hundred eighty degrees Fahrenheit so we can add a small pile of smokeless gunpowder to the center of the burner and then bring up the temperature I want to find out exactly what temperature this stuff goes off at all right let's turn up the heat my guess is this is going to go out somewhere around 3 90 and 400 and here's what we're looking at work early 280 degrees Fahrenheit and started to climb 400 420 430 there you go 430 degrees Fahrenheit 430 degrees Fahrenheit that's pretty cool case we're back down to 410 Fahrenheit and the verdict is it's still work there's nothing there enough residual heat so i would say anywhere between about 390 fahrenheit in about 430 is where the stuff is going to go off interesting let's turn off the burner and talk about what we just learned here today we entered this experiment with the purpose to find out what temperature our solid state rocket fuel would go off if it accidentally came in contact with the burner from our experiments here today we saw that it would not auto ignite in the pot itself but instead burn to a crisp and grind down into a fine black ash but we also saw that when we transfer that ash onto the hot plate itself it would still ignite so we tried an experiment making a new batch of rocket fuel and running it right on the burner itself and found that it would auto tonight somewhere around eight hundred and thirty degrees Fahrenheit next we try to commercial pyro decks muzzleloading propellant and put it directly under the burner where we maxed out the heat maxed out the thermometer and had no successful auto-ignition instead of turn into some kind of a gloopy black page but we found that it still would ignite with a lick from a BBQ plan last but not least we tried smokeless gunpowder putting that directly on the hot plate we found that went up in an instant if we cooled the burner down to around 280 degrees and slowly warm it up from there where it auto ignited around 430 degrees Fahrenheit we can come to the conclusion that the highest risk material for spontaneous combustion in your garage would be smokeless gunpowder although the chances of your garage getting up to 400 Fahrenheit aren't very high well that is it for this set of experiments today guys thanks for hanging out I'll be looking for you the next video exactly that hey guys thanks for watching and 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