The one and only time I tried to Mill pure kno3 I got the rock hard balls. I put them in a mason jar in case I ever get desperate enough to break them up and use them LOL I had just made a batch of black powder with the same kno3 but I guess the charcoal absorb the extra moisture.

Loading the Mill. A cylindrical shell revolves around its axis to form the ball mill. Metal balls (or other grinding medium) are fed into the mill together with the components of black powder (potassium nitrate, charcoal, and sulfur) within the shell. Using a ball mill to make mixed black powder is a specific operation, but safety is crucial.

The ball mill I made works better than expected( 2 hours mill time max). Running a 6" jar with 60 cal lead balls at a good 70 rpm. I make strictly bp for a small cannon. Question I have is I want to make a couple of jasr to mill charcoal/sulfur together and then the other jar just for potassium nitrate. Plan on then mixing the two instead of ...

Having given a warning about avoiding milling potassium nitrate and charcoal together, I need to elaborate on this point. Generally a potassium nitrate/charcoal mix is more likely to ignite than a potassium nitrate/sulfur mix. However, mixing a small amount of charcoal with the po-tassium nitrate is regarded by some as safer.

Posted July 5, 2012. I made some black powder yesterday with a ball mill... this is the burn test. Burn starts somewhere around 3s and ends before 4s, less than half a second. Used 75 Potassium Nitrate, 15 airfloat willow charcoal, and 10 sulfur. Ball milled 75 potassium nitrate + 5 charcoal, then 10 charcoal and 10 sulfur.

Mill all three components together to integrate well. The actual milling time depends on the efficiency of the particular mill. 2-3 hours should be considered the minimum with typical amateur ball mills. Some choose to ball mill the Sulfur and Charcoal together separately from the Potassium Nitrate for a large part of the mill time.

The plastic has a Sg. of about 2.0 and when falling in a large diameter mill drum generates significant inertia excellent grinding soft materials like potassium Nitrate, Charcoal etc. plus a lot of noise! Yes, they use large steel balls in mineral crushing like powdering cement and the like where sparking isn't an issue.

-If you would like to, ball mill your potassium nitrate using steel or high-alumina media. -50% Magnesium/50% KNO3 makes a pretty sweet flash powder. Ball mill the Mg and KNO3 separately for excellent results.

Anyone has experience with KNO3 + Aluminum powder ? Anyone knows if it works making homemade Blackpowder Substitute with KNO3(potassium nitrate) + Aluminum powder? I failed with classic BP receipt and want to see if KNO3 + Aluminum powder mixed in ball mill will work nice and how smokeless it is for 9mm, 38 spl and 357 …

- Potassium nitrate: 75% - Charcoal: 15% - Sulfur: 10%. Books for Making Black Powder For More information on each book click on it's name. Ball Milling Theory and Practice for the Amateur Pyrotechnician If you want to learn how to grind your own materials faster and efficiently, or to simply make better black powder, this book's for you.

The most common BP formula is "75/15/10," which means 75% potassium nitrate, 15% charcoal and 10% sulfur. This formula has been known for centuries as one which will produce powerful black powder. ... Finer grained chemicals will grind more easily and quickly in the ball mill. If, for example, your potassium nitrate is badly caked and …

Potassium nitrate, also known as salt peter, ... Cons: littl hard to motar and psetile but ball mills in 3 hours to a perfect powder. Other: None. Customer: Dick Fittswell. . Rating: 10/10. Pros: You get exactly what is described, in addition to quick shipping and excellent customer service.

If you get the HF 6lb ball mill, those tumblers could be used to mill any or all of the primary ingredients of black powder - potassium nitrate, sulfur and charcoal. Mark them for black powder use only. Media can be the lead, brass, copper or a good quality alumina. Mark them for black powder use only.

5lb Potassium Nitrate Milled The most extensively employed oxidizer in pyrotechnics. It used for a wide variety of applications, the most important of which is in the manufacture of black powder. Potassium nitrate is a white powder or long needle-like crystals before being milled to a fine powder.

I would make nozzled rockets, using 60-30-10 as my formula. I'd use a bullet grinder to reduce my charcoal, and screen it through 40 or 60 mesh, using everything that passes. Assuming the potassium nitrate is crystalline, I'd dissolve it in the smallest amount of boiling water I can use. I'd then add the charcoal and sulfur, and mix it well.

Weighing Potassium Nitrate into a Dedicated Cup Put the weighed amount of the potassium nitrate into the mill. Close it securely, and mill the chemical for two minutes. Milling the Potassium Nitrate to a Fine Dust Dump the milled potassium nitrate onto a 40-mesh screen resting on a piece of paper. Clean all of it out of the mill with a …

60 % finest Potassium Nitrate. 25 % very fine bright aluminum, forexample the 999, from the Indian MEPCO-factory. 15 % sulphur + 1 % boric acid. Mix only Potassium Nitrate, sulphur and boric acid and mill it like Black Powder, then sieve it and add the aluminum. Not so easy to ignite, but stronger, like a Barium Nitrate flash.

nitrate. potassium nitrate (KNO3), an ionic white crystalline salt made up of potassium ions and nitrate ions. Uses of potassium nitrate include the manufacture of fertilizers, pesticides, glass, fireworks, explosives, and rocket fuels. It is also used as a food preservative, and when added to meat it causes a reaction between the myoglobin and ...

You could use the CIA-Method. That means you mill the charcoal and the sulfur without the KNO 3.. Than you dissolve your Nitrate in boiling water, add the milled C and S and precipitate the KNO 3 with ice cold ethanol.. This process makes a very fast powder, and you don´ t have to mill any explosive composition, however it is labour …

Typically, a small coffee mill can efficiently grind about 3 ounces of the potassium nitrate at a time, and 1.2 ounces of the sulfur at a time. It only takes 10-20 seconds for each batch. So to make a 24-ounce batch, you should mill six 3-ounce batches of the potassium nitrate and two 1.2-ounce batches of sulfur.

Mix for 4 hours in the ballmill with brass media; 2. 75% potassium nitrate. 20% sulfur. Mix for 4 hours in the ballmill with brass media; 3. Mix the two compounds in the ballmill WITHOUT the brass media for an hour. Of course between the first and the second step the barrell and the medias must be carefully cleaned!

The chemical formula for gunpowder is: Potassium Nitrate (Saltpeter): KNO3. Charcoal: C. Sulfur: S. When combined, these ingredients form the chemical compound for gunpowder, which is commonly represented as KNO3 + C + S. In summary, the creation of gunpowder demands precision and entails potential hazards.

Unless you have a really good reason do not skimp on mill time even though milling ingredients means three times the milling time. PVC as a ball mill tumbler. I built my own ball mill and built PVC tumblers (see pic) out of 4" PVC tube and fittings that I use for oxidizers (mostly Potassium Nitrate), Charcoal, and BP - 1 tumbler for each.

Somewhere around here I reported my results with various sizes of SS media from 3/16-1/2" diameter spheres, using a 4" diameter mill jar to mill the charcoal. The potassium nitrate grinds better with the larger 1/2" media. The sweet spot for charcoal in my rudimentary testing was 5/16" diameter.

With this kit and a ball mill you can make every kind of black powder from superfine meal powder to 2FA lift powder. Be sure you have screens with the right mesh size for the granulation of black powder you want to make. A 100-mesh screen will work for meal while a 4-12 mesh screen will make your lift. ... - Potassium Nitrate, 8 lbs. (#CH5304) ...

Black powder is made from Potassium Nitrate (KNO 3), Charcoal and Sulfur. The common ratio is 75:15:10. Like zinc-sulfur, the burn rate depends on the particle size and how much it is compressed. ... The ball …

A ball mill is a rotating drum with dozens of lead balls inside. The 3 chemicals are loaded into the ball mill, along with the lead balls, sealed shut and allowed to rotate for anywhere between 1 and 24 hours. As the ball mill rotates, the lead balls will crush the chemicals together, forcing some of the potassium nitrate into the pores of the ...

Common use nitrates are very easy to process. When components have a more gummy texture, that you want to mill. The coffee grinder mills are usually extremely frustrating to use, or just not effective. My standard color batch size is 18lbs, so I'm usually prep-ing 9lbs or more of either nitrate at a time.

Melting 2 parts potassium nitrate with 3 parts sugar made great smoke bombs when we were kids. We never tried to make it more reactive, slow burning was better. Report comment

In making black powder, I've found that a material charge of 15 ounces of potassium nitrate, 3 ounces of airfloat charcoal, and 2 ounces of sulfur produces the most efficient quantity of BP mill dust.