How to Make Nitrocellulose

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About: I like anything low budget and DIY, especially if it can be worked into a film.

Intro: How to Make Nitrocellulose

How to make cheap Nitrocellulose from ping pong balls, black powder, and acetone for use in igniters and detonators.

Step 1: Mix Acetone and Cut Up Ping Pong Balls

Cut Ping Pong ball into small peices to make them easier to disolve in the acetone. Ping Pong balls themselves are a type of nitrocellulose, acetone will disolve them and make them easy to work with and make it possible to add black powder for a more violent ignition. After the ping pong balls are cut up and in the contianer you are using to mix your ingredients in pour enough acetone to cover the cut up balls and than add that amount again. You don't want it too think and sticky.

Step 2: Add Black Powder

Next add the black powder. Add enough to make the mixture very dark, but don't add enough to make it very thick. Make sure that black powder you are using is very fine and mixed evenly through out the mixture. There you have it, it's done. Now dip you igniters/detonators in it and let dry completely.
For detonator check out https://www.instructables.com/id/EH6Q99985NEPA8L6YC/?ALLSTEPS

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    113 Discussions

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    ljb727

    10 months ago

    You forgot to mention-

    #1. USE a plastic or non conductive mixing tool

    #2. Make damed sure your body is PROPERLY grounded to a reliable ground. The slightest spark (IE. running your hand through your hair could create a static spark) COULD set your mixture off. posted by an old military ordnance man.

    I witnessed just this happening on a flight line(military)- 7 people died in the explosion and I spent the next 90 days in sickbays ICU from the blast and shrapnel.

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    SHOE0007

    2 years ago

    This is interesting but would the stores if they knew about this replace the compound with a non reactive/flammable material?

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    mr.space

    9 years ago on Introduction

    if I coated string with this would it be waterproof? this isn't the same nitrocellulose as 'gun cotton', that involves nitric acid etc. but well done with the Instructable

    4 replies
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    GeoKmr.space

    Reply 3 years ago on Introduction

    Yes it is... Ping pong balls are made out of nitro cellulose... Old movie projector film from back in the day was made from nitro cellulose as well. After several truly horrific fires killing nearly every one in the theaters they passed a law where all movie projection booths in the US had to have the walls covered in steel! The nitrocellulose film would sometimes jam in the projector and ignite due to the intense focused light. The flames would quickly spread to the reels. Once the reels took off that was it, the building was definitively ablaze! lol Anyway, as for the ping pong balls, the Acetone is simply the solvent to dissolve the nitro cellulose. It does not react with the nitrocellulose in any other way. Ping pong ball nitro does work well for adding additional water proofing to fuses and also works great for electro detonators for remotely igniting model rockets or whatever the hell else you want to ignite remotely from a safe distance. I like to experiment with igniters. One of the better ways to make them is by using thin double layer PC board used for DIY electronic projects. Simply cut it with scissors(if you purchased the right thin stuff) and solder your 2 lead wires to it, one lead to each side. The form a tiny loop of 44ga nickel chromium wire and solder each end of your 1/8" loop one to each side. This gives you a nice small size ignitor in an easy to assemble form factor. You can get away with just the nickel chromium wire if you are just lighting gun powder but it is far better to use some form of prime on the wire for added insurance and KICK! lol For extra heat you can start with the standard black powder and nitrocellulose lacquer for a reliable work horse igniter. If you need a little more WHOOSH you can add in some 70/30 potassium perchlorate black aluminum flash powder and for some serious heat you can add a layer of thermite! Some of my larger experimental igniters have frightened even ME! The worst one was a small standard Christmas tree light bulb with the tip snipped off. I filled the now open cavity with acetone peroxide and sealed the hole in the tip with epoxy. It was so tiny I assumed it would be OK to test it indoors. I used a 12 foot lead wire and situated the igniter in the middle of a thick phone book and set it off from around the corner for an added safety margin. I set it off with a 9 volt battery and it sounded like someone fired a 357 in my living room, so load it frightened my neighbors! LMAO Thankfully I was thinking quick and their happened to be a hammer on my counter and I started pounding on my door jam as it was loose from me forcing it when I forgot my keys and had to get a credit card through to open the door. The neighbors were relieved and bought it hook line and sinker! I do not recommend anyone to play with acetone peroxide! Even the terrorists don't mess with it as they refer to it as Satans Breath! You have to keep the reaction well below 35 degrees during production to prevent the formation of even nastier isomers far more sensitive though that is hard to believe as even the more stable version seems as if it could go off from farting to load! lol

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    ewcrewmr.space

    Reply 4 years ago on Introduction

    Gun cotton is made when you add Nitric acid and sulfuric acid. You then have to stir them and be careful not make any sparks or use anything metal. Also remember to keep the acids below 18 degrees Celsius. Then add the acids to some water (not water to the acids) and be careful not to get any on your fingers as it will damage you skin. Then leave it for a bit but make sure it stays below 18 degrees. Now add cotton and leave that for a bit. Now set fire to it.

    Be extremely careful when you are doing this unless you have a death wish or a degree in flammable stuff that could kill you.

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    ewcrew

    4 years ago on Introduction

    If you take sulfuric acid and nitric acid and mix them together before diluting them and dipping paper (cellulose) in it you get nitro cellulose. This is flash paper that magicians use to burn their fingers with.

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    AzNSilentAssassin

    9 years ago on Step 1

    if you add cap gun powder, how do you crush it up without it exploding in your face? i would stick with match powder. what other powder can be used for this?

    2 replies

    Far as I know, there is no way to keep cap gun powder from exploding. It likes to trick you; it'll let you get maybe twenty or so of them emptied out into a container, and then you look away for one second and POP!! There goes your fingernail. It gets a good 5 or 10 feet though, but honestly fingernails are NOT what you want to be propelling with the powder.

    tl;dr lurk moar, don't mess with capgun powder(ammonium triIodide is safer imho) or lose a fingernail. It might grow back, but it won't be like the others.

    here's a link to some stuff that's safer to transport as a powder than capgun bullshit: http://www.youtube.com/watch?v=2KlAf936E90&feature=related
    inb4 "that isn't safe at all"

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    dauweiler

    7 years ago on Introduction

    This isn't really the making of nitriocellulose. this is Recycling of Celloloid.
    Simple Nitrocellulose is made by mixing 20 ml concentrated salpetric acid an
    40 ml concentrated sulfuric acid and 2 g cotton ( mixing the acids before adding the
    Cotton). The temperature of 20°C should not be exceeded or the mixture
    will decompose veary quickly.
    you can't allways use the technique shown in this instructable, because Ping Pong balls are often made of polyethylen or polystyrene.
    If you want to make Celloloid you desolve nirocellulose in acetone, add some
    camphor and lett the acetone evaporate.

    1 reply
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    sprocketeerdauweiler

    Reply 6 years ago on Introduction

    Unless you live in the 18th century 'Salpetric Acid' tends to be more often known as Nitric Acid, just in case anyone was wondering...

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    techno guy

    7 years ago on Introduction

    So ping pong smoke grenades shoot smoke out violently because it's made with nitrocellulose.

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    mcaliber.50

    7 years ago on Step 2

    this would be good for making quick loading packs for a muzleloader

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    pyro-jimmanmelvin

    Reply 8 years ago on Step 1

    sorry to bring back an old post but celluloid is made of nitrocellulose.

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    freakyqwertypyro-jim

    Reply 7 years ago on Introduction

    No it is not;
    Ping pong balls are made from celluloid which if you read the wikipedia article (I know, I know its unrelible and all that, but if it is used along with common sence it can have some good info) it says that celluloid is the name of a class of compouds created from nitrocellulose and camphor which is why its bad to use the ping pong ball smoke bombs (toxic fumes)

    There, thats my lecture for today.

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    pyro-jimfreakyqwerty

    Reply 7 years ago on Introduction

    "celluloid is the name of a class of compouds created from nitrocellulose" That's just a way of saying that the compounds called celluloid are made from nitrocellulose. Rant unneeded...