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elementcollector1
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1) You can't concentrate H2O2 like that, it just decomposes.
2) You don't pour a cold liquid into a hot beaker. Period. Even regular ones can't take it.
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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Zyklon-A
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How can I test for benzene? I have some zippo lighter fluid, that I want to use as a nonpolar solvent, for a substance that needs to be uncontaminated
to the point of edibility. Obviously, I don't want to get cancer. The bottle says nothing about benzene, but I want to be sure. All my other nonpolar
solvents won't work in this situation... (I have very few nonpolar solvents)
Sorry if the answer is really obvious, I know very little about organic chemistry.
[Edited on 16-1-2014 by Zyklonb]
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Pyro
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how old is it? what does it smell like?
I wouldn't use lighter fluid for anything that needs to be edible, benzene or not.
about the H2O2
but in his case it shouldn't have broken because:
1)RT is 20*C and BP of water (what H2O2 becomes is you boil it) is 100*C, 80*C difference in temp. shouldn't crack a beaker
2) the temp after addition will be 92,727*C, that means a drop of 7,273*C, this shouldn't break any glass.
[Edited on 16-1-2014 by Pyro]
all above information is intellectual property of Pyro.  |
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Zyklon-A
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It's almost brand new, I will allow it to evaporate completely before use. It smells fine, I guess.
Edit: It's good quality, premium Zippo brand, it says very clean burning, and from what I understand benzene produces some smoke when burned,
[Edited on 16-1-2014 by Zyklonb]
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Mailinmypocket
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I'm pretty sure lighter fluid is naphtha, and it should be fairly pure. Don't quote me on it, perhaps check an msds? As for a test for benzene, it
would likely require somewhat advanced equipement since it likely would be present (if at all) in small concentrations. What are you trying to
extract? Perhaps we could suggest something besides lighter fluid...
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alexleyenda
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Quote: Originally posted by elementcollector1  | 1) You can't concentrate H2O2 like that, it just decomposes.
2) You don't pour a cold liquid into a hot beaker. Period. Even regular ones can't take it. |
1) false, I already made it many times and made density test for concentrations and it almost did not decompose at all from 3% to 30% according to its
density. I also tested it's reaction and it was muuuch more strong, showing again that it works quite well.
2) Alright, then I guess I have to do it slowly with a separatory funnel right?
Zyrk : Then I guess I'll pay the extra cost for pyrex for my experiments that deals with heat.
[Edited on 16-1-2014 by alexleyenda]
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Mailinmypocket
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1- let it cool between boilings, top it off, repeat.
2- use two beakers, and swap them, when one is boiled down let it cool and bottle it, add your next beaker of fresh peroxide, boil, swap... Etc etc
Just don't pour cold peroxide into a hot beaker. Simple.
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Zyklon-A
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@mailinmypocket, I'm helping my brother extract LSA (not LSD,) from from Hawaiian Baby Woodrose Seeds, in case you're wondering, it's completely
legal.
Also it's for my brother.
@alexleyenda, maybe you can concentrate H2O2 by boiling a little, but you'll lose a lot, what you should do, is put it in the oven at ~80 to 90C, the
decomposition is MUCH slower and yeilds will be MUCH better. It will just take a little longer.
[Edited on 16-1-2014 by Zyklonb]
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alexleyenda
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| Quote: Originally posted by Zyklonb | @mailinmypocket, I'm helping my brother extract LSA (not LSD,) from from Hawaiian Baby Woodrose Seeds, in case you're wondering, it's completely
legal.
Also it's for my brother.
@alexleyenda, maybe you can concentrate H2O2 by boiling a little, but you'll lose a lot, what you should do, is put it in the oven at ~80 to 90C, the
decomposition is MUCH slower and yeilds will be MUCH better. |
I'll try, I already tried keeping it around 80°C and bublling air through it, it was really slower and I did not see much difference in the final
product. I should do a density comparison, but by boiling 90% of a 3% H2O2 solution I got 30% H2O2 according to my density test with 4 numbers. Either
you overestimate the decomposition, either I made a mistake, either the 3% peroxide is in reallity a bit more concentrated to compensate for the
decomposition.
[Edited on 16-1-2014 by alexleyenda]
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Mailinmypocket
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Hmm I don't really care if it's legal or who it's for, was just a question. Assuming you are going to dry what you extract, given how volatile benzene
is you could simply let it evaporate off along with the naphtha IF there even was benzene present. Otherwise buy something from a supplier like
elemental scientific such as hexane.
[Edited on 16-1-2014 by Mailinmypocket]
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Zyklon-A
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Ok, thanks.
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thebean
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Am I insane for considering cleaning my matchbox red phosphorus with aqua regia? It sounds a little nuts to me but the thought occurred when I
remembered spilling a small drop of aqua regia on paper and watching it be destroyed. I haven't tried it but I'm worried about losses of RP or
potentially dangerous redox reactions occurring.
"You need a little bit of insanity to do great things."
-Henry Rollins
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Zyklon-A
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What are you hoping the aqua regia will do?
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alexleyenda
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I guess he wants it to dissolve the paper and leave the phosphorus behind.
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Zyklon-A
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Ok, that makes sense, I guess, I don't know if it will work though.
A quick google search: 'does aqua regia react with phosphorus' gave no answers.
[Edited on 17-1-2014 by Zyklonb]
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thebean
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I was hoping that the aqua regia would be more efficient than acetone washes, H2SO4 washes, HCl washes and NaOH washes like I normally do.
"You need a little bit of insanity to do great things."
-Henry Rollins
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Zyklon-A
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Do you know if aqua regia reacts with phosphorus?
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alexleyenda
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| Quote: Originally posted by thebean | | I haven't tried it but I'm worried about losses of RP or potentially dangerous redox reactions occurring. |
You should really read more carefully the posts Zyrk, it's the seconth day in a row I answer you with a quote :p
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Mailinmypocket
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Read up on nitrosyl chloride (formed in aqua regia) and it's chemistry and reactions, with phosphorus if possible. It helps to know what sorts of
reactions it participates in with other materials as well, the forum library also has some good inorganic chemistry books that will be helpful. Don't
forget about the glue and other stuff in the striker that lead to a mess when combined with concentrated strong acids.
Side note: you are willing to waste precious aqua regia to get a tiny amount of phosphorus? 
[Edited on 17-1-2014 by Mailinmypocket]
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Zyklon-A
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I did read it carefully, he said that he didn't try it, not that he didn't know weather it reacts or not, also you didn't really answer my question,
which I asked him.
I don't know why you call me Zyrk, there's no 'r' in Zyklonb, nor is it so long that you have to shorten it at all.
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Mailinmypocket
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I should have used the quote function to quote the OP. I was not necessarily responding to you zyclonb, sorry for the misunderstanding.
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Zyklon-A
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| Quote: Originally posted by Mailinmypocket | | I should have used the quote function to quote the OP. I was not necessarily responding to you zyclonb, sorry for the misunderstanding.
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Lol, I was responding to Alex, not you, I should have used the quote, this is confusing, anyway no problem.
[Edited on 17-1-2014 by Zyklonb]
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thebean
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I would be using my poor man's aqua regia made from HCl and nitrate salts so it wouldn't be a big deal to me.
"You need a little bit of insanity to do great things."
-Henry Rollins
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DubaiAmateurRocketry
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Does Acetyl Isocyanate(AcNCO) exist ? or possible to synthesize ? such as (AcCl + NaNCO > NaCl + AcNCO) ?
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Brain&Force
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Acetyl isocyanate does exist, and there's a supplier for it.
http://www.chemspider.com/Chemical-Structure.10489205.html
At the end of the day, simulating atoms doesn't beat working with the real things...
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