SpudFiles

DONT DO THE FRYING PAN METHOD one of my friends made it in my shed and he was stiring the mixture and it flashed up and burnt his face horribly,he had 2nd degree burns to his chin and nec and most of the skin on his face was burnt and going to the hospital and explaining wat we did he said it was and oil fire and a drum exploded or something....a smarter way to do it is to melt the sugar to make it like a toffe like syrup and take it off the heat and add the KNO3(potassium nitrate)to the sugar and stir and wait for it to cool,works just aswell and its much safer.

Another way to make smoke bombs is to make a 60%KNO3 40%sugar and grind it up in a morta and pesl to a fine powder and add corn syrup to it just enough to make it stick together and give that a go.

dragon finder wrote:I tried to down load the smoke bomb vid but no noise or picture came up. What is wrong?

Read the download sticky at BCVids, the videos require the DivX codec.

Oh ok thanks should have seen that

ive got a prob with my smoke bomb, it dosent make a lot of smoke, and is really SLOW burning. any suggestions?

add more potassium nitarte more potassium nitrate makes it burn quicker. More sugar makes it burn slower. and if they dont make a lot of smok make bigger ones. I use half a paper towel roll.

yea i figured that more KNO3 would burn faster, but didnt feel like making another batch to see. thank-you

Its safe aslong as u dont add heat and another way to make it burn faster is to add more surface area so more of it can get to oxygen quicker and thus burning quicker and hotter.

if u walk aroundd town askin for saltpetre its gonna look weird because thats the main ingredient for gunpowder.

ive also heard that a better mixture is heating up over a LOW flame 6 parts sugar and 1 part saltpetre. 1 pound can cover a whole city block and your saltpetre will last longer.

here is a list of smoke bomb stuff.
now these are NOT MINE these are from www.xinventions.com
White smoke
Source: "Mengen en Roeren"[6], page 224.
Comments:
Preparation:

Potassium nitrate.................................4
Charcoal..........................................5
Sulfur............................................10
Wood dust.........................................3

Red smoke
Source: "Mengen en Roeren"[6], page 224.
Comments:
Preparation:

Potassium chlorate................................15
para-nitroaniline red.............................65
Lactose...........................................20

Green smoke
Source: "Mengen en Roeren"[6], page 224.
Comments:
Preparation:

Synthetic indigo..................................26
Auramine (yellow).................................15
Potassium chlorate................................35
Lactose...........................................26

Smoke composition #1
Source: rec.pyrotechnics
Comments: Different sources mention differnt compositions. The most often mentioned one is given here.
Preparation: The mixture is most succesfull when prepared by melting the sugar and potassium nitrate together on low heat, but this requires good stirring, and there is a risk of accidential ignition. The molten mixture can be poured in cardboard containers and a fuse insterted while the mixture solidifies.

Potassium nitrate.................................50
Sugar.............................................50

Smoke composition #2
Source: rec.pyrotechnics (composition is an U.S. military smoke composition)
Comments: The mixture is difficult to ignite. Hexachloroethane is poisonous, and can be replaced by 72 parts PVC. This, however, makes the mixture yet harder to ignite. The zinc oxide can be replaced by titanium dioxide (2 parts ZnO replaced by 1 part TiO2). The smoke is slightly irritating and not suitable for indoor use.
Preparation:

Zinc oxide........................................45
Hexachloroethane..................................45
Aluminum..........................................10

Smoke composition #3
Source: "Spelen met vuur"[9]
Comments:
Preparation:

Zinc powder.......................................35
CCl4..............................................41
Zinc oxide........................................20
Diatomeous earth..................................5

Smoke composition #4
Source: "Spelen met vuur"[9]
Comments:
Preparation:

Zinc powder.......................................25
CCl4..............................................50
Zinc oxide........................................20
Diatomeous earth..................................5

Smoke composition #5
Source: Kirk-Otthmer technical encyclopedia[8], chapter 'Explosives and Propellants'.
Comments: Heat of reaction: 2.579 kJ/g, Gas volume: 62 cm3/g, ignition temperature: 475°C, impact sensitivity test: 15% of TNT
Preparation:

Zinc..............................................69
Potassium perchlorate.............................19
Hexachlorobenzene.................................12

i made one like in the viedo, only i used steel pipe and threaded end caps, it works well but the pipe gets reallllly hot.

I got it, use to make a cannon, but in you cannon like the end cap blow off only there is a poatao inside and it could shoot the poatao, think it might work?

wow i can delete posts in here

when you mix the potassium nitrate and the suger can you use a very fine suger(caster suger)

http://media.putfile.com/lotsofsmoke

i got a 4 sec video of one of those in action