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slinky
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Quote: Originally posted by Formatik  |
The reaction of acetone with fuming nitric acid is detailed in the silver acetylmethylnitrolate thread. In small amounts, it does not catch fire, but
crackles violently and gases off nitrogen oxides heavily, because of the products of the reaction it seems it's more likely to explode than ignite in
larger amounts.
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Gave this a whirl at a .6 mole scale. No fire.
98% H2SO4 was added to NaNO3 waited for it to start fuming then added the (CH3)2CO. Lots of angry fumes, no fire :\
Thanks for the tip about the list Formatik. Having never combined any of those chemicals I took Dr. Nancy Magnussen at her word. I figured a list from
a school would be legitimate because they know what has caused fires in their labs in the past. I do indeed see your point that just because something
started a fire one time that doesn't mean it will reliably start a fire every time.
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mewrox99
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http://www.megaupload.com/?d=ZDFSEXUP
There is the potato chip video.
Has anyone tried H2 + Mn2O7. I'd imagine that would be an epic (but potentially fatal) reaction
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hkparker
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Nitrile gloves + RFNA
http://www.youtube.com/watch?v=UHNkil-zOaI
EDIT:
Anyone else want to do this one or should I?
[Edited on 14-3-2011 by hkparker]
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Morgan
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I was reading some old literature I have, a few pages copied out of a book entitled "Generation and Measurement of Sound in Gases" by R.W. Leonard.
There is mention of using sirens that produce intensities to cause cotton to busrt into flames by the absorption of acoustic energy. It might be kind
of interesting to see.
Here's some tidbit I dug up on the net.
"Izzy loved to use demonstrations in his teaching. His public lectures at UCLA, given under the title of “An Evening of Demonstration Experiments in
Physics,” where always standing room only. He would levitate objects in high-intensity sound fields and make cotton burst into flames as it absorbed
the abundant acoustic energy generated by his siren. Though simple in appearance, these demonstrations included fresh discoveries, which quickly
became part of the curriculum because, as Izzy put it, “Today’s research is tomorrow’s homework.”
http://www.universityofcalifornia.edu/senate/inmemoriam/isad...
Silent sounds are hot
http://books.google.com/books?id=RigDAAAAMBAJ&pg=PA135&a...
[Edited on 14-3-2011 by Morgan]
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slinky
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I'll give it a go.
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MrHomeScientist
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I've seen a few references that talk about why you shouldn't store chemicals alphabetically, and this caught my eye:
"Ammonium Nitrate - Acetic Acid Mixture may result in ignition, especially if acetic acid in concentrated. "
Anyone ever try this? I imagine it won't work with ordinary vinegar.
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ScienceSquirrel
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| Quote: Originally posted by MrHomeScientist | I've seen a few references that talk about why you shouldn't store chemicals alphabetically, and this caught my eye:
"Ammonium Nitrate - Acetic Acid Mixture may result in ignition, especially if acetic acid in concentrated. "
Anyone ever try this? I imagine it won't work with ordinary vinegar. |
As vinegar is about 6% acetic acid the answer is no. You might as well try and set fire to beer on the grounds that it has alcohol in it.
I suspect that a mixture of ammonium nitrate and glacial acetic acid around the consistency of a thick paste is required.
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slinky
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Ok, I'm starting to think that the problem is me doing something wrong. The glove also failed to produce fire.
I added the glove and all it did was char. Perhaps the glove has a funky composition? My source of rfna was adding 55g H2SO4 to 50g KNO3. I waited a
bit then added the glove. Maybe I added the glove too soon? My KNO3 source is an old bottle of dexol stump remover which is 100% KNO3 per the msds. In
my previous post I misspoke and said it was NaNO3 when really it was KNO3.
Am I doing it wrong ?
http://www.multiupload.com/BM6GHCIL0I
^ video of failed nitrile glove fire
[Edited on 3.18.2011 by slinky]
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hkparker
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| Quote: Originally posted by slinky | Ok, I'm starting to think that the problem is me doing something wrong. The glove also failed to produce fire.
I added the glove and all it did was char. Perhaps the glove has a funky composition? My source of rfna was adding 55g H2SO4 to 50g KNO3. I waited a
bit then added the glove. Maybe I added the glove too soon? My KNO3 source is an old bottle of dexol stump remover which is 100% KNO3 per the msds. In
my previous post I misspoke and said it was NaNO3 when really it was KNO3.
Am I doing it wrong ?
http://www.multiupload.com/BM6GHCIL0I
^ video of failed nitrile glove fire
[Edited on 3.18.2011 by slinky] |
You might need distilled rfna. Can you distill it?
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Morgan
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I don't know if this one has been mentioned, but recalling the aluminum and iodine reaction, it might be interesting to try sprinkling aluminum or
magnesium powder in chlorine gas.
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slinky
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I do indeed have the capacity to do that. If I have to distill it though I wont be storing the rfna so I'll retry all of the suggested rfna reactions
on the same day. I wont be able to do this for about a week though as I'm out of town for a week.
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mewrox99
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NaClO2 + Ascorbic Acid + H2O
http://www.youtube.com/watch?v=BXsQ6zhdMsU&feature=relat...
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hkparker
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Good find mewrox! When you get you chlorite I'm sure there will be a lot of unstable mixes like this to try. Do you have ascorbic acid?
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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The WiZard is In
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| Quote: Originally posted by slinky | | Ok, I'm starting to think that the problem is me doing something wrong. The glove also failed to produce fire. |
You can make RFNA by adding formaldehyde to Conc HNO3.
Be warned the reaction is not instantaneous and use a wide
mouth vessel for it bubbles.
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ScienceSquirrel
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| Quote: Originally posted by The WiZard is In | | Quote: Originally posted by slinky | | Ok, I'm starting to think that the problem is me doing something wrong. The glove also failed to produce fire. |
You can make RFNA by adding formaldehyde to Conc HNO3.
Be warned the reaction is not instantaneous and use a wide
mouth vessel for it bubbles. |
I would not mix nitric acid with formaldehyde. It will not dehydrate the acid and it could result in a very nasty accident.
http://www.osti.gov/bridge/servlets/purl/6341723-v1IOj1/6341...
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mewrox99
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Hey Nurdrage When do the video entries close?
Because I ordered some Sodium chlorite (not chlorate) and it may take a month or so to arrive and they are several hypogolic reactions with that
compound. I also have a nice new camera so I can record in HD
Won't adding a nitrate salt to conc. H2SO4 make RFNA.
And yes never mix formladahyde and HNO3 unless your in the mood for death
[Edited on 26-3-2011 by mewrox99]
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NurdRage
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The entries will go for as long a they need to until i'm satisfied we have enough and i can make a good video.
We have a lot so far but i want some more. So keep submitting 
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mnick12
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Well if anyone is looking for ideas CrO3 and acetone makes a spectacular fireball-whoooosh if done in a 250ml beaker. I would film this myself but I
dont know where my camera is. Come to think of it CrO3 + any flammable liquid usually results in quite a nice fire.
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hkparker
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This is being talked about in the energetic materials section:
http://www.sciencemadness.org/talk/viewthread.php?tid=12932
Fine silicon powder and dry sodium hydroxide are mixed. Some water is added. A violent reaction occurs after a few seconds producing sodium silicate
and hydrogen gas. Some water boils off as steam. The reaction gets so hot it eventually lights the hydrogen by its self. Looks pretty energetic and
produces quite a flame. I dont have any elemental silicon at the moment but if I do and can mill it I will give this a try, but I think someone else
should do it as well. This would also fit well in the "making hydrogen" idea we talked about at the beginning.
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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NurdRage
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Interesting.... I wonder where i can find fine powdered silicon.
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hkparker
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I was thinking of making silicon from sand based thermite then milling it in a small ball mill.
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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UnintentionalChaos
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I have germanium powder of unknown purity. I could see if that works equally well. Nevermind, I don't own that much of it... :|
[Edited on 4-4-11 by UnintentionalChaos]
Department of Redundancy Department - Now with paperwork!
'In organic synthesis, we call decomposition products "crap", however this is not a IUPAC approved nomenclature.' -Nicodem
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MrHomeScientist
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That was what I was thinking too. I've got the products of my video on silicon thermite that are already about the size of sand, so I can try and
grind those down and see how that works.
I also tried out a few mL glacial acetic acid + powdered ammonium nitrate today, but nothing happened Doesn't seem that incompatible to me!
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hkparker
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Awesome mrhomescientist, let us know how it goes. From what I read the silicon needs to be pretty fine.
My YouTube Channel
"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Mindchemist
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You could also try sodium phosphide in water:
http://www.youtube.com/watch?v=QWVOHX52tbw
Wake up and smell the 2-furfuryl mercaptan.
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