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hkparker
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Nitrile gloves and RFNA made it into the last video.
The lead one sounds really interesting, are you going to give it a try?
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"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Formatik
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Brain fog moment.
I don't know about trying that reaction. I don't have a recording camera for the time being.
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Bot0nist
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Mood: Streching my cotyledons.
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I am not sure if you have any entries of KClO<sub>3</sub> + fuel + H<sub>2</sub>SO<sub>4</sub> = fire yet, but I
just made three short videos of chlorate with cellulose, chlorate with sugar, and chlorate suspended in 91% IPA. All ignited with a drop of
concentrated sulfuric acid. Each clip is about 10 seconds long.
I tossed 'em up on my little youtube channel for you to see. If your interested I would love for them to be edited together and subtitled or
something. I know little about making digital videos, it seems simple though.
http://www.youtube.com/user/TheBot0nist
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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hkparker
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Thanks for the contribution Bot0nist, I'll add it in. We have had a few chlorate + fuel + H2SO4 reactions so far but the cotton and IPA are new.
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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Chemistry Alchemist
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pretty sure ill have to wait a bit longer to do my video... i didnt get the torch >< but im hoping to buy it next time i go to hard ware store
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Chemistry Alchemist
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Would white phosphorus on a acetone soaked towel work? im gonna try it now and see if it works
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Chemistry Alchemist
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ok, so it worked, took about 15 minutes for the WP to dry but i stopped recording because battery was low and then it ignited >< what bad luck i
had :/ i dont think i have enough WP to do it agian tho
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hkparker
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Yea that would work. White phosphorus by itself would do it.
We have no footage of WP so that would be great if you (or anyone) could make more and film 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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Chemistry Alchemist
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Is there a way to make it through phosphoric acid? i have alot of phosphoric acid, can i make WP with it?
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hkparker
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See the phosphorus thread. Easily? No not at all.
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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Formatik
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The idea of PbO2 and sugar on alcohol didn't work. Putting the mixture on an alcohol-moist tissue gave only crackling and spitting when the H2SO4 was
added, and didn't ignite it. The alcohol interfered with the reaction.
But here are two videos to add. The first is a just a mixture of PbO2 and fine cane sugar in a 3:1 respective mass ratio, ignited by drops of conc.
H2SO4. This mixture will ignite solids though: the second video is a pile of the same PbO2/sugar mixture in a pile of a mixture of KNO3 with fine cane
sugar (3.5:1 respective mass ratio of KNO3 to sugar), conc. H2SO4 is dropped onto it and ignites the stronger burning nitrate mixture.
http://www.megaupload.com/?d=HGCC7FWQ
http://www.megaupload.com/?d=XHLNILCG
This time for the PbO2 I just added solid Pb(NO3)2 to excess aq. NaClO and boiled it on a hot plate for several minutes. The product was a lot lighter
than last time, being medium brown in color.
I also tried something with the boranes, but had no luck there. There's some info B2H6, B4H10, B5H9, etc. on wiki. They are said to be self-igniting
with air. They are very toxic.
I burned H3BO3 on an iron plate with a torch until it became glassy, then added a small amount of 40 mesh Mg powder (note finely divided B2O3 and Mg
is a flash powder!), and then burned the Mg into the lump. Then turned the B2O3 lump around and then did the same, and let it cool.
I took a chunk of the cooled lump and tossed it into 54% HNO3, it only gave off nitrogen oxides. Taking the rest amount and dumping it into water gave
some mild effervescence and bubbles, but no other reaction. There was a foul odor though, meaning some boranes did form.
[Edited on 16-10-2011 by Formatik]
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hkparker
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Thanks for the submissions, I will add them to the video!
Here is a pretty chart for how submissions stand as for now for part 2:
<br /><br />
<img src="http://sciencemadness.org/scipics/part2.png" />
<br />
Submitter being the person who originally suggested it, of course anyone is free to work on anything.
I'm very excited with the amount of interest in part 2! This is just about as big as part 1 already, and for sure will be when the in progress videos
get finished.
EDIT:
Formatik just added a DMSO + KMnO4 video, thanks!
[Edited on 16-10-2011 by hkparker]
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"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Chemistry Alchemist
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I know this is a lame idea but how about Magnifying glass to some tissue maybe soaked in something flammable? concentrating heat into one spot, rising
the flashpoint of a solvent causing it to ignite? or isnt it chemistry enough? haha
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Chemistry Alchemist
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how about fire with a match and a magnifying glass? or doesnt that count? worked nicely on cam 
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hkparker
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Its probably not chemistry related enough. Its cool but seeing as no chemical reaction caused the match to ignite I would say probably not. Unless
everyone disagrees.
Also:
There were a few errors on the chart I posted, thanks to everyone who pointed them out.
#7 is 90% DMSO and KMnO4
#22 is cotton and chlorate ignited by H2SO4
I have made (as far as I can tell) about $40 off the video which is to be donated to SM. I messages Polverone, who said he has enough to keep SM
going for a few years and that it might be better spent on our project, but I don't think this would be much money to send back to everyone, and we
already agreed on SM so I'll be sending that in soon.
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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Chemistry Alchemist
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yeah thats fine, it shows the composition of a match can self ignite at high temperatures... you should try grinding match heads with red phosphorus,
it creates a mini explosion and a puff of smoke meaning there was a explosion of fire but was reallly quick but that spoils the point of fire with out matches...
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SmashGlass
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Quote: Originally posted by ScienceHideout  | | I can drop a tiny piece of sodium in dilute alcohol- the sodium will combust in the presence of H2O igniting the alcohol! (Similar to the calcium
oxide idea I heard earlier). |
I love that reaction. It always brings a smile to my face.
We've had a few accidental fires started in our lab that way with the techies. Obviously the scales
I am talking about were slightly larger. Hehehe. Sodium quenches are always fun... Cuz I'm usually
holding the fire extinguisher when there is a new lab technician.
Another method I've found that is good is taking about 100 mL Pet ether (70-80C grade) in a 500 mL
beaker, swirl this round a few times then pour that back into the flask. It just coats the glass then add
a few ml of water to cover the bottom and toss in a sliver of sodium, about the size of a finger nail end
you might have bitten off. (It's a crude analogy but you get the idea hopefully).
If you don't chew your nails, then you must be very confident of your chemistry abilities and of those around you.
Make sure the oil has been cleaned off the sodium using a smaller beaker and a few ml of the pet ether.
It makes a loud "POP", a bright flash and a light blue flame appears which burns out in about 20 seconds.
Not overly dangerous on that scale but nice to get the attention of others in a dim lecture hall on the first day
of the organic chemistry class.
If it ain't broke don't fix it....
Now where are my screwdrivers?  |
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hkparker
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I'm surprised this works that well, that's awesome! Feel free to submit a video anyone, I think that would make a good contribution.
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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Bot0nist
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http://www.megaupload.com/?d=KTVMGJLP
http://www.megaupload.com/?d=R2HTQK2M
Here you are. I have never used megaupload, I hope it works.
I wanted to scale up the reaction a tad to make them more interesting, but in my first two attempts with the IPA mix I observed what very much to me
sounded like detonations. Unexpected detonation like sounds make me very jumpy.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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hkparker
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Thanks! I'll put in a note to keep the IPA scaled down.
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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Polverone
Now celebrating 21 years of madness
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Thread Split
18-10-2011 at 21:08 |
Chemistry Alchemist
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Was just reading up on Ammonia and came across this;
"Ignition occurs when chlorine is passed into ammonia, forming nitrogen and hydrogen chloride; if chlorine is present in excess, then the highly
explosive nitrogen trichloride (NCl<sub>3</sub> is also formed."
I dont know if it ignites on its own but it sounds like it does... rekon it deserves to be tested?
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hkparker
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carefully. I would say if someone has 30% NH4OH so put a few ml in a beaker and feed some Cl2 in, see what happens.
Ammonia will also ignite if touched by hot platinum, but I don't know if anyone has access to a platinum wire.
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"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
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Chemistry Alchemist
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How hot would the wire have to be?
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hkparker
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torched, I've seen it done and it was glowing.
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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Neil
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I have some Pt wire, the same trick works with a jet of butane. I can do a video of it in a few days.
Some "wind proof lighters" have a coil of what appears to be platinum across the fuel orifice...
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