Has anyone ever made any oh this stuff? Also I can't find the proper temperature in which to cook it and it keeps igniting while I'm cooking.
may i suggest a 1:1 Sulphur/Zinc mixture?
easy as hell to make, just put 1kg zinc powder and 1kg sulphur powder into a barrel, add a few 25mm steel ball bearings and roll the barrel around for a while till you get a uniform colour.
no heat required therefore far more stable.
ignition temp is 1200 C.
a 100 Ohm resistor will flash at the required temp if hooked up to a standard 12v car battery
>full of fucking rocket fuel
>steel tumbling media
Oh shit nigger what are you doing?
So is this /rocket/ general?
Might as well be since i have a rocket fuel question.
Going for my first liquid fuel build, and was wondering if Avtur (f34/jeta1) and LOx would be a good mix. I have access to free avtur and a limited supply of lox but was wondering if there was a better fuel (cant really get a better oxidiser than lox)
You most likely know this already, but oxygen/kerosene is a common combination in big rockets. Apparently alcohol would be easier and safer choice, though (better cooling, does not polymerize). Dunno how much that really matters in a small rocket which burns just few seconds.
You are doing it way wrong if it's igniting on you.
To make sugar rocket motors you are creating a caramelized mix of sugar and potassium nitrate. I suggest following a cooking guide on how to best do this.
You can add the potassium nitrate in as the sugar melts or mix it all together with water.
I've found in my experience it's best to use as little water as possible, just use a good heat and add slowly until it dissolves. Then cook until all water has been completely driven off and the mix resembles a tacky dough.
It's pretty easy, no idea why yours is igniting though? What ratio are you using? It should be around 60-65% potassium nitrate and 35-40% sugar. I recommend blending the mix with a hand blender before heating, the finer the powder, the more consistent the burn rate will be. Keep it at a low heat, the sugar will start to caramel, mix it with a metal spoon or a spatula. Once its the same brown color all over and its smooth, you're good to go ahead and pour it into your container. I use an open flame because I have a gas oven, but I think it'll probably be safer doing it on an electric hotplate if you're having problems with it randomly combusting.
I hope this helps OP
>Has anyone ever made any oh this stuff?
I've made some before, with reasonable success. The propellant itself performed well in every case; it was my motors themselves that suffered problems. My first motor, a static test article, ignited but the nozzle throat was too large and it failed to choke and produce pressure/thrust (glorified smoke bomb). My second motor, also a static test, appeared to function properly, so I decided to proceed with flight testing. Neither static motor included an ejection charge. My third and last motor delaminated at the paper casing, causing the motor to scream and whistle like a piccolo pete as gasses blew between layers of paper. But it made thrust for just long enough to clear the pad before the nozzle itself was ejected from the motor with a thump, killing all appreciable thrust. Momentum carried the rocket to about 15 or 20 feet as the delay charge burned through, at which point my gunpowder ejection charge energetically and enthusiastically deployed the parachute perfectly at apogee (though a full two seconds more prematurely than I had intended it to deploy at, for still-unknown reasons). Not exactly what I had planned but I still consider it a success.
>Also I can't find the proper temperature in which to cook it and it keeps igniting while I'm cooking.
Dear god, man. What the hell are you doing?
Just follow James Yawn's Rcandy recipe. 300 degrees F is all you need. Even less than that when the moisture has flashed off and the propellant has the appropriate hardness (leaving the temperature high will caramelize the sugar, reducing performance).