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Sannadex Powder

Old 05-07-2011, 07:46 AM
  #51  
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Originally Posted by Muley Hunter View Post
You do know that the charcoal in BP is what makes the dirty fouling, because it's made from wood. (same for Pyrodex).

So, with T7 being much cleaner burning. What is the charcoal in T7 made from? It's not made from salt. If not sugar which we know works. What then?
OK... now I understand - and agree carbon in the barrel is from the buring of charcoal in the powder. And the charcols they list is not surgar. And I also agree with one of your statements way back up the page... some charcoals a one heck of a lot better than others. I think Swiss BP is a excellent example of using the better types of charcoal. Orignally charcols was used to provide carbon and other fuel for the reaction.

In the case of T7 carbon is not need for the reaction but with the addition of charcoal you have a product that when burned creates smoke or at least some smoke. That is the sole purpose of the charcoal in T7. So it's quality is not as important as it is in real BP.

So again you may be right, but really i acually suspect the same charcoal used in Pyrodex is used in T7 but only a lot less of it, as it is not necesary for combustion. I can not imagine that Hodgdon would not use the same products that they already have under contract, just with T7 they do not need as much of it. Well actually as White Hots show - they do not need any except they were trying to meet our expectations of what a BP sub should like - so add charcoal for smoke and graphite for black powder.
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Old 05-07-2011, 09:34 AM
  #52  
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can you find anything in regards to 777 that states it contains any type of sugar base. Ray
The only thing found is an article from Randy Wakeman. i'm sure Wakeman is wrong on this. i can find no evidence that 777 contains sugar of any kind.

i'm an EOD guy for nearly 50 years. Know several explosive forensics types; if 777 powder contained sugar i believe they would have told me. The presence of sugar byproducts should make post detonation analysis easier.

Triple Seven and Black Mag3 are far hotter (or more energetic) than good old black powder, and produce higher velocities and pressures. Still burning carbon, the carbon-based fuel burned here is from the sugar family, not from wood (charcoal).
http://www.chuckhawks.com/difference_black_powders.htm

The analysis of 777 powder and residue from a simulated disrupted pipe bomb shows no evidence of sugar/sugar residue that i can find.

http://www.forensic-testing.net/uplo...xp_summary.pdf


so add charcoal for smoke and graphite for black powder.
Graphite also reduces the hygroscopicity of the powder.

Last edited by falcon; 05-07-2011 at 07:15 PM.
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Old 05-08-2011, 08:06 AM
  #53  
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Sulphur is added to BP to lower the ignition temperature.
Believe it or not there's a powder that uses only two of the ingredients of black powder which omits the sulphur and it works almost the exact same.
It's only ingredients are ~85% saltpeter and ~15% charcoal by volume.


http://thefiringline.com/forums/showthread.php?t=450111

Last edited by arcticap; 05-08-2011 at 08:20 AM.
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Old 05-08-2011, 09:15 AM
  #54  
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Originally Posted by arcticap View Post
Sulphur is added to BP to lower the ignition temperature.
Believe it or not there's a powder that uses only two of the ingredients of black powder which omits the sulphur and it works almost the exact same.
It's only ingredients are ~85% saltpeter and ~15% charcoal by volume.


http://thefiringline.com/forums/showthread.php?t=450111

OK, That is just plain COOL !!!
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