Flash Charges
 

 

Flash #1
The sulfur can be replaced by antimony trisulfide and the sound of a salute made with this composition will change very little.

potassium perchlorate.............................50
Aluminum..........................................23
sulfur............................................27


Flash #2
potassium perchlorate.............................70
Aluminum (dark pyro)..............................30


Flash #3
Larger percentage of aluminum results in a stronger flash. This composition is slightly less sensitive than the usual perchlorate mixtures which also contain sulfur.

Potassium perchlorate.............................65...70%
Aluminum powder...................................rest (up to 100%)


Flash #4
Potassium perchlorate.............................3
Aluminum, 400 mesh................................3
Sulfur............................................1


Flash #5
This is a relatively safe flash composition. Burns with a brilliant white light in an open tube, or when unconfined. When well confined, it produces a loud, low pitched report and a short but intense flash.

Potassium nitrate.................................50
Sulfur............................................30
Aluminum..........................................20


Flash #6
Can be ignited by a fairly low temperature flame, and produces a greenish flash when magnesium is used. Burns very fast, and produces a loud report even in an open container.

Magnesium or Aluminum.............................1
Barium sulfate....................................1


Flash #7
Relatively insensitive.

Barium nitrate....................................4
Alumium (fine mesh)...............................2
sulfur............................................1


Flash #8
Dampen the mix lightly with water and mix thoroughly such that the material is crumbly but then packs tightly into a ball. If it is at all greasy feeling or mushy, there is way too much water. Save some dry mix on the side just in case it becomes too wet during the dampening. Granulate the damp comp by rubbing the packed ball over a 20 mesh screen. Do not use any screens larger than 20 mesh. If the screen plugs, the comp is too damp. Add more dry comp and thoughly mix in. After drying the granulated powder, it can be used in flash bags. About 3 to 5 grams works well in a 3 inch shell. Experimentation is needed to adjust the amount of burst for good results with different stars and shell construction. This powder can also be used ungranulated, in a central flash bag, in larger shells.

Potassium nitrate.................................3
Potassium perchlorate.............................3
Dark aluminum (USB 809)...........................3
Barium nitrate....................................1
Antimony sulfide (CN).............................1
Sulfur............................................1
Dextrin...........................................1/2


Flash #9
The use of permanganate in pyrotechnic compositions is not recommended, since it is unstable and will decompose over time. Also, like all flash mixtures, this mixture is quite sensitive and powerfull. Great care should be taken when handling this mixture.

Potassium permanganate............................12
Aluminum..........................................7
Sulfur............................................10


Flash #10
Potassium perchlorate.............................80
Aluminum..........................................27
Sulfur............................................3


Flash #11
Potassium perchlorate.............................64
Aluminum..........................................23
Sulfur............................................13


Flash #12
This composition produces slightly less noise than "Flash #11", but is safer to handle than similar compositions containing sulfur.

Flash #13
Barium nitrate....................................68
aluminum, dark pyro...............................23
Sulfur............................................9

Smokeless Flash Powder
Zirconium.........................................28
Zirconium hydride.................................7
Magnesium.........................................7
Barium nitrate....................................30
Barium oxyde......................................25
Rice starch.......................................5

Photoflash
Heat of reaction: 8.989 kJ/g, Gas volume: 15 cm3/g, ignition temperature: 700C, impact sensitivity test: 26% of TNT. Half a pound of this flash delivers 120 million candlepowder. It is used in the M120A1 and M112A1 flare cartdriges.

Aluminum (20 micron; atomized)....................40
Potassium perchlorate (24 micron).................30
Barium nitrate (150 micron).......................30

Purple Flash
Magnesium.........................................10
Potassium perchlorate.............................10
Cupric oxide......................................3
Strontium nitrate.................................3
PVC...............................................1

Yellow Flash
Magnesium.........................................1
Sodium nitrate....................................6

Green Flash
potassium perchlorate.............................6
barium nitrate....................................3
Aluminum powder...................................5
Potassium perchlorate.............................72
Aluminum..........................................28

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