Making Ammonia Perchlorate (APCP) Rocket Engines

[@SomeSortaPro]

youtube algorithm, I dont know how you found this gem for me but please keep it coming!❤

[@badrinathrs]

Yes.. I am getting similar recommendations recently, and i am thankful to youtube

[@cranialconstruction2218]

Thanks! It does mean a lot.

[@barry7608]

This vids add so much meaning to amateur rocketry !

[@practicalengineer2414]

I love rocket engines. Your explanation in making them is simply awesome and brings more curiosity. The pointer used during the presentation was probably the best I've ever seen 😂

[@cranialconstruction2218]

Thanks a ton! I appreciate your support.

[@アイスクリーム-x7b]

So cool! Making APCP rocket engines is my dream!

[@shakostarsun]

The last one was awesome!

[@cranialconstruction2218]

Appreciate it a lot!

[@sergioalvescordeiro9495]

Rapaz! Este último foi pra lua🌙!🤣🤣🤣👏👏👏👏🍀🍀🍀🍀💥💥💥💥💫🪄

[@chemistryofquestionablequa6252]

Cool, I bought a pound of AP from Amazon a while ago for rockets, haven't gotten around to using it yet.

[@cranialconstruction2218]

Just a small note, a small amount of HCl gas is produced when these burn. Just a friendly heads up.

[@Aaron-zu3xn]

you can replace potassium nitrate with AP in rocket candy and also make a very nice sugar rocket engine with AP

​@@Aaron-zu3xnKN is better and stable with sugar. Perchlorates/chlorates and sugar are unsafe and can easily burn.

[@fiokgoogle8779]

Last one krack me upp , you so calm . 🎉😂 ha ha ha

[@cranialconstruction2218]

Thanks!

[@rusty-dy3gz]

I used to live in Cape Canaveral Florida. As kids we would find big chunks of rubber on the beach. If you lit it on fire it would just go off. Bright white light up the road. It was fule from rockets that had exploded. From who knows when.

[@cranialconstruction2218]

That's just plain crazy. What a memory!

[@trinitro5968]

Ok, I got my Ap off of Amazon back in 2012, as far as I remember that was the date. I'm out at this point and wanted to order more, no luck! Amazon used to have 90 micron ap available. Where are you getting yours? Pyroachemsource? And has it raises any concerns, as far as getting it? I have no clue why Amazon no longer offers it, but I can only imagine. Anyway always enjoy your videos Brother !

[@cranialconstruction2218]

Yes, Amazon has stopped carrying some of these chemicals. Especially those that can be used in pyrotechnics, rocket engines, etc. I first got mine there several years ago and that's what I'm using in the video. When I need to reorder I'm not entirely sure where it will come from, but a chemical warehouse is high on the list.

[@chemistryofquestionablequa6252]

​@@cranialconstruction2218pyrochemsource is where my AP came from via Amazon so I'll just order directly from them next. I'm almost out, used most of it for energetic perchlorate complexes.

[@TajiTaji-yf2xp]

Is this how to do the solid rocket Ammonium perchorite Almiunium powder Silicon Magnesium Mixed al of them and then use Is that true ?

[@cranialconstruction2218]

Yes, that is correct. You do need to mix in the right ratios for it to work properly. Also, it is silicone used, not silicon. They are two different things.

[@harms123]

Ammonium perchlorate* Aluminium powder* Silicone* Magnesium wasn't mentioned.

[@maxxxxzz9674]

How to make ammonium perchlorate pls, because thailand don't sell and video you very cool😊

[@cranialconstruction2218]

The chemicals necessary to make AP include sodium perchlorate which is probably not available also. Sorry.

[@kevinduprey9326]

Hey brother, any ideas on alternative boost powder besides black powder? This rocket fuel maybe modified? I have no mill and would like to use something besides bp for lifting ball shells. Thanks

[@cranialconstruction2218]

Yes I do. There are a couple. Please email me.

[@kevinduprey9326]

@@cranialconstruction2218 ok..will do

[@Aaron-zu3xn]

3 KClO4 + 8 Al → 3 KCl + 4 Al2O. The stoichiometric ratio is 34.2% aluminum and 65.8% perchlorate by mass. A ratio of seven parts potassium perchlorate to three parts dark pyro aluminium is the composition used by most pyrotechnicians

[@HomeGrownPyrotechnics]

​@Aaron-zu3xn are you recommending he use flash powder for lifting shells? Terrible idea

[@chemistryscuriosities]

Are you using for persulfate or perchlorate?

[@cranialconstruction2218]

Perchlorate

[@littlehills739]

13:00 paper clip rebars through the epoxy ? to anchor

[@cranialconstruction2218]

That could work. Not a bad idea.

[@shawntilton9170]

Is it possible to delute the silicone with acetone, for the purpose of mixing and pouring? And after it evaporates,......... It would make it easier to pour into a tube with a rod wrapped in cellophane, or thin coat of Vaseline.

[@cranialconstruction2218]

Interesting idea. Silicone doesn't dissolve well in acetone, but does in xylene and toluene.

[@iamnotanymore]

where can i buy ammonium perchlorate at cheap site

[@cranialconstruction2218]

That's a difficult question. By nature, AP is expensive stuff. AP is sold in large quantities most often so finding sellers of smaller amounts is key. Amazon has fair prices and allows purchases of smaller amounts, less than 0.5 kg.

[@iamnotanymore]

@@cranialconstruction2218 ok from where did you buy

[@cranialconstruction2218]

@@iamnotanymore There are two sites that I use. The first is the most basic and easiest at Amazon. The second is a place called United Nuclear.

[@DJChesley]

What's the cheapest source you found for AP? From what I remember it was vastly more expensive than KN.

[@CatboyChemicalSociety]

Homemade

[@cranialconstruction2218]

Your best bet is to search the net. It's just not that cheap if you buy it unfortunately.

[@CatboyChemicalSociety]

@@cranialconstruction2218 way cheaper to make it but you need know how and means

[@DJChesley]

@@CatboyChemicalSociety do you mean just by running a chlorate cell? I thought I remembered if you run it for too long it goes from chlorate to perchlorate

[@CatboyChemicalSociety]

@@DJChesley yes but using PbO2 electrode at 150 ma/cm2

[@JohnDoe-pd2lh]

Use a metal coat hanger instead of wooden sticks. Still light weight, but no risk of burning.

[@cranialconstruction2218]

That would work but I live in a neighborhood and launch a lot of test rockets. The metal hangers would be strewn all over the place. I know the wood will at least degrade.

[@JohnDoe-pd2lh]

@@cranialconstruction2218 Ah. Yeah, I can see how that could be a problem.

[@stumccabe]

No! A steel rod falling from several hundred feet is not a good idea.

[@jodigant]

Can you please share the link for buying Silicon ?

[@cranialconstruction2218]

Here it is (from Amazon) - www.amazon.com/Permatex-80050-Silicone-Adhesive-Sealant/dp/B0002UEPVI/ref=sr_1_5?crid=35CC322ABJ0Y1&keywords=silicone+sealant+clear&qid=1693507755&sprefix=silicone+sealant+clear%2Caps%2C105&sr=8-5

[@jodigant]

@@cranialconstruction2218 Thanks buddy.

[@Aaron-zu3xn]

AP+Nitromethane+5-50 micron aluminium(stearic acid coated)... stand way back and test this in a very small amount it's going to have lots of power

[@cranialconstruction2218]

I don't doubt it.

[@chemistryscuriosities]

I went through the same process to plasticize rocket candy. I have a tutorial on my channel

[@anthonyrichard7319]

son......labour intensive is changing poopy nappy every few hours......kool video

[@TheExplosiveGuy]

For anyone that wants to make the real stuff, HTPB resin is available for purchase at the RCS Store online, I got a gallon of it last year and still have 90% of it left even after making dozens of rockets. It's not the cheapest stuff (about $250/gallon including the catalyst) but the difference it makes over silicone is huge, it has a much more stable burn and is far easier to mold into grains, and provides more thrust as well. If you dont live in the US you're shit out of luck unfortunately, the RCS Store doesn't ship outside of the lower 48.

[@huhdidwhat]

You kept saying "ammonium persulfate". It was perchlorate though wasn't it??

[@huhdidwhat]

Nevermind, you say perchlorate in the second half lol

[@cranialconstruction2218]

No problem!

[@rezakhanish]

🤩💯👌

[@rickpribyl7657]

What grade of aluminum did you use?

[@cranialconstruction2218]

I used aluminum 5 microns

[@sergioalvescordeiro9495]

E mais, você deve misturar tudo o que for pó primeiro e só depois você põe o silicone. Do contrário o seu combustível nunca ficará homogêneo.

[@cranialconstruction2218]

Talvez algo esteja perdido na tradução, mas foi isso que sugeri no vídeo

[@sergioalvescordeiro9495]

Primeiro você mistura tudo o que é pó e por último você coloca o silicone.

[@cranialconstruction2218]

Yes

[@cheesescrust5399]

Next experiment: thermite worms 😂

[@cranialconstruction2218]

Lol that'd be something

[@bigjay875]

I saw something similar to this mix but it was made as a waterproof fuse

[@cranialconstruction2218]

That's interesting. Can I ask where? I searched for a basic recipe and couldn't find one that used just these 3 chemicals. It would have saved a bit on all the testing as ammonium perchlorate is expensive stuff.

[@stumccabe]

Casing too weak - a thin plastic tube cannot withstand the pressure being created. Also (and related to first point), your nozzle is too small! Even a PN/sugar motor generates 60 to 72 atmospheres of pressure (about 1000psi)!

[@cranialconstruction2218]

Yep. This was a video on firsts. Just to see if an APCP fuel could be made from over the counter silicone. To find the best ratios. And then to try and launch an engine. I had no idea that the thrust would be that significantly stronger than anything I had worked with to this point. I will make an updated video now that I have worked with this fuel (quite a bit since this video just testing) and have some experience.

[@sergioalvescordeiro9495]

Seus foguetes sempre irão explodir se você não deixa espaço livre no nariz! O nariz deve ter o diâmetro maior do que o estopim. Do contrário, todos irão explodir ao envés de subir!

[@cranialconstruction2218]

Sim isso é verdade

[@sergioalvescordeiro9495]

Olá amigo 👋! É uma grande honra receber sua resposta!🙏🍀💥🪄💫

[@ketnoiammepkl1950]

Did you use epoxy glue to mix the ingredients?

[@cranialconstruction2218]

I mixed it with silicone sealant. The same kind you would seal a water leak with.