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symboom
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I vote for hydrogen peroxide synthsis
We use it alot and its quiet useful
Used to improve yield in some reactions
Caros acid clean glassware
Making iodine
Making oxygen
Making nitric acid
Making sulfuric acid
Desolving metals
Unique inorganic peroxide contaning compounds
Copper peroxide
Zinc peroxide
The hydrogen peroxide can be made by
From persulfate process
From barium peroxide
Athoquone process
The person with the highest concentrating not exceeding 75 percent. Or the first person to make it to 75 percent peroxide
Concentrating
Vacuum distill off water
Camical reaction
By Desication with sulfuric acid or any other desicant
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DavidJR
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Quote: Originally posted by symboom  |
The person with the highest concentrating not exceeding 75 percent. Or the first person to make it to 75 percent peroxide
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Bear in mind that this would make it illegal for anyone in the EU who doesn't have an explosives precursors license. Maximum concentration allowed
without a license is 12% by mass. Still, 12% hydrogen peroxide is a very useful reagent to have.
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symboom
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Damn that spoiles that competition i did not know that damn there are some restrictive laws i feel like the laws are slowly closing the freedom to
experiment and invent
All i got to say is innovation happened in a garage just look at bill gates and other inventors
Sorry my coment is slightly leaning in to societal issues fourm
[Edited on 5-5-2018 by symboom]
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fusso
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| Quote: Originally posted by DavidJR | | Quote: Originally posted by symboom |
The person with the highest concentrating not exceeding 75 percent. Or the first person to make it to 75 percent peroxide
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Bear in mind that this would make it illegal for anyone in the EU who doesn't have an explosives precursors license. Maximum concentration allowed
without a license is 12% by mass. Still, 12% hydrogen peroxide is a very useful reagent to have. |
Well then just don't mention that you're from EU and you'll be fine.
Nyaruko: it's not a crime if no one finds out.
[Edited on 05/05/18 by fusso]
[Edited on 05/05/18 by fusso]
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fusso
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| Quote: Originally posted by fusso | | Quote: Originally posted by DavidJR | | Quote: Originally posted by symboom |
The person with the highest concentrating not exceeding 75 percent. Or the first person to make it to 75 percent peroxide
|
Bear in mind that this would make it illegal for anyone in the EU who doesn't have an explosives precursors license. Maximum concentration allowed
without a license is 12% by mass. Still, 12% hydrogen peroxide is a very useful reagent to have. |
Well then just don't mention that you're from EU and you'll be fine.
Nyaruko: it's not a crime if no one finds out.
[Edited on 05/05/18 by fusso]
[Edited on 05/05/18 by fusso] |
Otherwise get out of dumb EU countries. There are definitely countries (a few if not a dozen) with better laws regarding owning chemicals. Sorry for
political thoughts.
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fusso
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| Quote: Originally posted by JJay |
That is one challenge I would have no chance of winning. It's almost mind-numbingly easy to purify substances by recrystallization, but when it comes
to growing crystals, I am just awful at it. I think a lot of people would like that idea, though. What would be the aim of the challenge?
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I think the winner could be the one who grew the largest (maybe stray crystals(is this the right term?) allowed if one wants an easier challenge), or
the most beautiful (may be subjected to objective interpretation), or the crystal with the most exotic shape (also subjected to objective
interpretation)
[Edited on 06/05/18 by fusso]
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VSEPR_VOID
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I like that idea. It takes very little equipment to grow crystals so it is dependent on a person's talent rather than their budget.
Within cells interlinked
Within cells interlinked
Within cells interlinked
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Sulaiman
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I would participate in a crystal growing challenge
I've re-crystallised stuff a few times but never yet tried to grow a large/beautiful crystal.
Having no experience I'd like a challenge where a few substances are chosen by more experienced crystal growers.
CAUTION : Hobby Chemist, not Professional or even Amateur
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DavidJR
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| Quote: Originally posted by Sulaiman | I've re-crystallised stuff a few times but never yet tried to grow a large/beautiful crystal.
Having no experience I'd like a challenge where a few substances are chosen by more experienced crystal growers. |
Personally I think this challenge would be most interesting if it was left open re the substances. Otherwise you'll just end up with loads of very
similar pictures.
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diddi
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yes agree with unrestricted substance selection. perhaps judging could include a difficulty factor and an aesthetic factor as well as the size
Beginning construction of periodic table display
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Sulaiman
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I see the benefit of free choice;
If we go ahead with a crystal growing challenge I shall probably attempt Rochelle Salt
so that I can make a microphone, or record player, or loudspeaker,
or a 'sharp whack with a heavy object' detector.
CAUTION : Hobby Chemist, not Professional or even Amateur
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