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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 2007-12-19, 23:54
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Midwest USA
Default distilling sulfuric acid...

ok so i got some 30% h2so4 from the auto parts store for refilling batteries. it appears to be very clean stuff so that's good, but i'm having issues with distilling it. i've been following the guideline i've seen on almost all sites, 110C until you reach calculated volume or see white fumes, but it's taking FOR FUCKING EVER. i'm trying to boil off about 2L to what i calculated would be about 300ml. is it reasonable for me to push like 180C or so to get this done in a timely manner? i maybe got it halfway done after 8 hours at 110, and h2so4 doesn't boil until over 300....

opinions?
 #2 
Old 2007-12-20, 00:16
nuclearrabbit nuclearrabbit is offline
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Default Re: distilling sulfuric acid...

Just cook it as hot as you can, it's not gonna hurt it.
 #3 
Old 2007-12-20, 00:46
Ozzy Bot Ozzy Bot is offline
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Default Re: distilling sulfuric acid...

Turn it up to 250
 #4 
Old 2007-12-20, 05:32
AreteVeteran AreteVeteran is offline
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Default Re: distilling sulfuric acid...

You could save some time and head to ACE hardware and get some 98%?

/AV/
 #5 
Old 2007-12-20, 08:12
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Midwest USA
Default Re: distilling sulfuric acid...

Quote:
Originally Posted by AreteVeteran
You could save some time and head to ACE hardware and get some 98%?

/AV/


that stuff has aweful buffers and such that fuck things up. ive experienced very near danger as a result and i'll take the road less traveled and follow the other 2's advice on concentrating the good stuff.
 #6 
Old 2007-12-22, 09:36
AreteVeteran AreteVeteran is offline
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Default Re: distilling sulfuric acid...

Hmm, Ive never had problems with it, but power to you for taking the scenic route.

/AV/
 #7 
Old 2007-12-22, 12:10
Regular
 
run while you can ----->
Default Re: distilling sulfuric acid...

Quote:
Originally Posted by jonogt
ok so i got some 30% h2so4 from the auto parts store for refilling batteries. it appears to be very clean stuff so that's good, but i'm having issues with distilling it. i've been following the guideline i've seen on almost all sites, 110C until you reach calculated volume or see white fumes, but it's taking FOR FUCKING EVER. i'm trying to boil off about 2L to what i calculated would be about 300ml. is it reasonable for me to push like 180C or so to get this done in a timely manner? i maybe got it halfway done after 8 hours at 110, and h2so4 doesn't boil until over 300....

opinions?


wouldnt that give u 600ml?(30% of 2L is 600ml)
 #8 
Old 2007-12-22, 15:18
asilentbob asilentbob is offline
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Default Re: distilling sulfuric acid...

Rooto. Very clean.

If buffers are your problem add a tincy bit of peroxide, let react for a long while... then boil concentrate... then distill off the H2SO4 with a retort or proper glassware.

What your doing here is boiling, not distilling since your not collecting what you are boiling off.
 #9 
Old 2007-12-23, 19:03
Moderator
 
I live in Heresy
Default Re: distilling sulfuric acid...

wouldnt that give u 600ml?(30% of 2L is 600ml)

Not if it's 30% by weight, H2SO4 is 80% heavier than water I think.

the mix would be roughly 1,25g/ml, 2l would weigh 1,5Kg, 30% of that would be 300g, which would be 300g*1,84g/ml = 540ml after it's cooled down again.

'course you'll never actually get to 100% unless you pump some ozone ond SO2 through there, or plain SO3 ... hah!
 #10 
Old 2007-12-24, 02:37
Halvy101 Halvy101 is offline
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Default Re: distilling sulfuric acid...

Quote:
Originally Posted by nuclearrabbit
Just cook it as hot as you can, it's not gonna hurt it.


LOL!! :]
 #11 
Old 2007-12-24, 03:04
Ozzy Bot Ozzy Bot is offline
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Default Re: distilling sulfuric acid...

LOL!! :]

ASk lacrima about that.
 #12 
Old 2007-12-24, 03:17
nuclearrabbit nuclearrabbit is offline
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Default Re: distilling sulfuric acid...

Lotek's accident (http://www.totse.com/community/showthread.php?t=1834193)
 #13 
Old 2007-12-24, 20:08
Ozzy Bot Ozzy Bot is offline
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Default Re: distilling sulfuric acid...

Lotek's accident (http://www.totse.com/community/showthread.php?t=1834193)
Oops, it was lotek.
 #14 
Old 2007-12-28, 06:45
Regular
 
Midwest USA
Default Re: distilling sulfuric acid...

so does that peroxide thing really work for cleaning it up? will that give me CLEAR acid, or is it just clean in the essential chemical sense? cause i'm pretty sure rooto was one i've tried, and its a nasty brown shit. should i just accept that this is what i'll be working with, or will the peroxide clean it up?

also, things should go better as i've just finished my DIY magnetic stirrer which works very well (= and should be able to make delicate reactions all around smoother
 
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