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 Post subject: Back to Basics : Black powder Recipe
PostPosted: Fri Sep 22, 2017 10:50 am 
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Back to Basics Black powder Recipe


"The first explosive powder—black powder—was invented in China during the 9th century. It is generally accepted that black powder is 75 percent potassium nitrate (salt peter), 15 percent charcoal and 10 percent sulfur. Individual recipes may differ slightly, but this one is the most common. The potassium nitrate acts as an oxidizer; the charcoal and sulfur are fuels. It is considered a low explosive in that it deflagrates at a velocity less than the speed of sound. Black powder deflagrates at a relatively constant rate whether open or confined as in a cartridge case or the chamber of a firearm or cannon. The deflagration rate can be altered slightly by adjusting the size of the kernels or grains of powder. Coarse kernels will burn a slightly slower than fine kernels because they have a smaller surface area exposed to ignition. It contains no chemical accelerants or decelerants to influence its burn rate."

:arrow: https://www.americanrifleman.org/articl ... gunpowder/

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 Post subject: Re: Back to Basics : Black powder Recipe
PostPosted: Fri Sep 22, 2017 5:20 pm 
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I made my own powder when I was a kid. Made rockets with it too! :D


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