What's wrong with this simple SnB method?

hirozaru

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What's wrong with this simple SnB method?

01 - I either use a 600ml or 1L coke bottle, cleaned and dry.
02 - I add 50g of AmmoniumNitrate powder (taken out of cold packs and grinded)
03 - I mix in 13g of pill content, which is 48 pills at 30mg PSE = 1.44g
04 - I add 250ml of white gas for a 600ml bottle, or 400ml for a 1L bottle.
05 - I cut a battery open, either a Panasonic Lithium AA, or a CR123A 3V battery
06 - quickly separate the lithium from the rest and pull it in the battery. I was told to cut it into small square, but feeling rush, I sometimes just put it in a few pieces. I can't cut with metal scisors, right?
07 - I give that a good shake before adding the NaOH (50g as well).
08 - I shake it again
09 - if after a few minutes, I see no reaction. I add 5ml water.
10 - usually takes less than 60 seconds before things start moving inside.
11 - I see tons of new orange stuff moving around. sometime the lithium is lighting up. also golden nuggets appeared.
12 - I test the bottle pressure by pressing it
13 - when it's really hard; i let some pressure escape by quickly venting it.
14 - after less than 15 minutes, the bottle gets perforated at the bottom, and most of the liquid is lost.
15 - I tried saving some, and HCl gasing it, but nothing clearly precipitate.
16 - yield is zero/null.


Alternative:
- I sometime prepare the lithium in fuel first and add NH₄NO₃ + pill content next.
- I tried using Gorilla tape to strenghten the bottom.
- Could I try a magnetic stirrer to keep things moving inside at all time? I would need a different Reaction Vessel.
 

Frit Buchner

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I think it's a lot. Next time start by taking this recipe and burning it. Then use the recipe I gave you. Go find a semi truck. Push on the tire with your thumb. That's 100 psi. That's how hard the bottle needs to get. Don't vent it unless/until it grows an inch taller.
 

hirozaru

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Well, that's helpful. I am following the same directions. I had already found the same recipe on here before you sent it to me. it has a lot of useful details indeed.
I wanted to write in simple terms the steps and understand why the bottle broke.

but on a separate chat, i understood it's the lithium burning the bottle and not the pressure breaking it.

I will reread that recipe to catch what else I might have missed.
 
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