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Backyard Ballistics This forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum.

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 #1 
Old 2002-06-13, 21:42
Rat_Bastard Rat_Bastard is offline
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Default KNO3 smoke (by popular demand)

You wanted pics of this? now you got em.
The "traditional" KNO3 smoke ratio is this:

KNO3/Sugar
60%/40%

Zero had a faster burning "revised" recipie that was like this:

KNO3/Sugar
70%/30%

Its up to you what one you want to use. Anyways, I found that ICING SUGAR works best for the smoke recipie, instead of regular sugar.

Here I made a small demonstration batch.

here they are mixed.
====

You slowly heat the mixture over a flame STIR CONSTANTLY. In this pic, you see the stuff is starting to melt together. Don't let it get too hot (it will turn black and smoke) or else it will all ignite.
=====

Here is the finished mix. While it is still warm you can put it into a contaner, and it will harden into the contaner shape.
=====


it burns pretty fast, and puts out a lot of smoke, but watch out for hot bits that are spat out.
 #2 
Old 2002-06-14, 07:39
scythe scythe is offline
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Default Re: KNO3 smoke (by popular demand)

could you add the Kno3 in after the sugar has melted (to prevent it from "blowing up " in your face) or does it have to be while it is melting

please tell me where i can easly obtain kno3. is it an ingredient in anything or do you have to buy it from a chemist?
 #3 
Old 2002-06-14, 09:01
TechMasterJason TechMasterJason is offline
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Default Re: KNO3 smoke (by popular demand)

rat_bastard
Thanks for the smoke info I was looking for that.

scythe
You can get KNO3 at a pharmacy. They might know it as salt peter but it's the same thing.
 #4 
Old 2002-06-14, 09:33
static_firefly static_firefly is offline
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Default Re: KNO3 smoke (by popular demand)

You wont find kno3 in any chemists here in australia. Tell me where u are and i might be able to help. You can however buy it from butchers (some of them, vinigar and salt is replacing "salt peter aks butchers salt"). I bought a 25kg bag for 30 bucks and im really happy with my batch. Something u can buy from a chemist is potassium permangate wich is better then kno3. However it costs a bloody fortinue ($5 for 25gram).
 #5 
Old 2002-06-14, 15:10
Kanibus Kanibus is offline
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Default Re: KNO3 smoke (by popular demand)

Icing sugar, also known as powdered sugar?
 #6 
Old 2002-06-14, 15:18
Zero the Inestimable Zero the Inestimable is offline
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Default Re: KNO3 smoke (by popular demand)

"Confectioner's Sugar".

~Zero the Inestimable
 #7 
Old 2002-06-14, 15:18
CRaZyAmishMaN CRaZyAmishMaN is offline
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Default Re: KNO3 smoke (by popular demand)

powdered sugar, icing sugar, confectioner's sugar... all the same thing.
 #8 
Old 2002-06-14, 16:24
QriX QriX is offline
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Default Re: KNO3 smoke (by popular demand)

no it's not the same powderd sugar will very dangerous becasue the powder will catch a flame...
it will blow up..


QriX
 #9 
Old 2002-06-14, 18:28
Kanibus Kanibus is offline
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Default Re: KNO3 smoke (by popular demand)

so powdered sugar is or is not the same thing? i was under the impression that it was, but someone just said its not.

and if it is the same, then could i do this: 70% potassium permanagate(i know its expensive, but i cant get potassium nitrate), and 30% powdered sugar? would that work, even if its crappy? i think it would, but im not completely sure.

[This message has been edited by Kanibus (edited 06-14-2002).]
 #10 
Old 2002-06-14, 18:31
CRaZyAmishMaN CRaZyAmishMaN is offline
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Default Re: KNO3 smoke (by popular demand)

i don't see how powdered sugar will catch a flame but not confectioner's sugar, considering they're the SAME THING

powdered sugar is the same thing.
 #11 
Old 2002-06-15, 08:30
QriX QriX is offline
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Default Re: KNO3 smoke (by popular demand)

indead,
powderd sugar is just sugar but the powder will fly in the air and catch flame easily.

QriX
 #12 
Old 2002-06-15, 10:57
scythe scythe is offline
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Default Re: KNO3 smoke (by popular demand)

static_firefly: i live in the lower blue mountains in NSW.

can you help me at all?
 #13 
Old 2002-06-15, 13:33
Rat_Bastard Rat_Bastard is offline
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Default Re: KNO3 smoke (by popular demand)

quote:
Originally posted by QriX:
indead,
powderd sugar is just sugar but the powder will fly in the air and catch flame easily.

QriX



What are you talking about? sugar does not flame up like flour does. I took some of the icing sugar and threw it up in the air (so it made a cloud) and it didnot ignite when I lit it.

It's safe, I have made it many times and I have never had it blow up while making it.
 #14 
Old 2002-06-16, 07:18
static_firefly static_firefly is offline
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Default Re: KNO3 smoke (by popular demand)

hmm. I live in SE QLD. I get mine from a fertilizer wherehouses. just look that up in the yellow pages. Thats where a lot of farmers go to get there stuff. They might wanna know if u want fine or prill. get fine cus thats pretty pure while prill costs more and isnt water soulbul.
 #15 
Old 2002-06-16, 18:53
QriX QriX is offline
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Default Re: KNO3 smoke (by popular demand)

Powderd sugar does ignite same way coffee powder does!
not as easy to ignite but still..


QriX
 #16 
Old 2002-06-16, 21:06
Zero the Inestimable Zero the Inestimable is offline
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Default Re: KNO3 smoke (by popular demand)

In regards to the potassium permanganate mixture:

I think you would have to use less oxidizer and more sugar. Permanganates are more powerful oxidizers than nitrates. Also keep in mind that the permanagate smoke mixture (if it works) could be unstable - Permanaganates and oragnic compounds (sugar) generally don't mix well, nor do permanganates and moisture...

~Zero the Inestimable
 #17 
Old 2002-06-19, 03:46
Schwabe The Zer0 Schwabe The Zer0 is offline
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Default Re: KNO3 smoke (by popular demand)

...now what are other 'conventional' uses for kno3...?

It's much help to have a small talk backup story when, well, anyone, bothers you.
 #18 
Old 2002-06-19, 04:15
Rat_Bastard Rat_Bastard is offline
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Default Re: KNO3 smoke (by popular demand)

Black powder is a conventional use for KN03

quote:
Originally posted by Zero the Inestimable:
In regards to the potassium permanganate mixture:

I think you would have to use less oxidizer and more sugar. Permanganates are more powerful oxidizers than nitrates. Also keep in mind that the permanagate smoke mixture (if it works) could be unstable - Permanaganates and oragnic compounds (sugar) generally don't mix well, nor do permanganates and moisture...

~Zero the Inestimable



Thats right!
I ground a small amount of permanganate & sugar in a mortar & pestel (to see how friction/impact sensitive) and it crackled and caught on fire

 #19 
Old 2002-06-19, 09:49
static_firefly static_firefly is offline
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Default Re: KNO3 smoke (by popular demand)

unstable eh. I might give this a shot. I hate the way potperm stains your fingers when u play with it.
 #20 
Old 2002-06-19, 10:24
Kanibus Kanibus is offline
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Default Re: KNO3 smoke (by popular demand)

so we saying like 40% potperm and 60% sugar, 50%/50%, or even 30%/70%? ill probably have to experiment with it, but im curious so i could maybe not waste my time doing so.

[This message has been edited by Kanibus (edited 06-19-2002).]
 
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