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Praxichys
International Hazard
Posts: 1063
Registered: 31-7-2013
Location: Detroit, Michigan, USA
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I was kind of stoked for this one and I even drew up a whole synth map, but I had vacation plans out of town for a week and a half, which kind of
killed it. I can't wait for the next challenge!
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
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Another Idler, as am i ...
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Volanschemia
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Posts: 340
Registered: 16-1-2015
Location: Victoria, Australia
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Mood: Pretty much all of them!
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Alright! I have gone through the 5 submissions I received, and as far as I can see they all adhere to the rules (which is a relief I can tell you).
We have a very clear winner, with a whopping 38 compounds in his chain. Congratulations to
Pinkhippo11! 38 compounds is definitely no small
achievement!
The winner of the secondary prize was very hard to choose, and I was torn between a really interesting compound, and a really interesting procedure.
Therefore, I have decided to award the secondary prize ($10AUD) to both.
Congratulations to DraconicAcid with his Tetramethylammonium
Tetrachlorocuprate(II). Equal congratulations go to zts16
with his direct method to anhydrous CuCl2 involving passing Cl2 through CuI in an enclosed system.
I would also like to give an originally unplanned tertiary prize of $10AUD to mayko for the excellent presentation of his writeup.
Thankyou to everyone who entered, I definitely learned some stuff from your submissions and it was very fun reading through everyone's chains. I hope
you enjoyed it as much as I did, and I wish I could give a prize to everyone, but I don't think my bank account would cope.
I would also like to thank j_sum1, Amos, zts16, woelen and diddi
for help in logistics and planning of the competition.
The writeups and pictures will be posted here soon for perusal of anyone interested.
Could Pinkhippo11, mayko, zts16 and DraconicAcid please U2U me their PayPal email
addresses.
Thanks again,
TAS.
"The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and
vapor, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the
Persian king" - Johann Joachim Becher, 1635 to 1682.
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DraconicAcid
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Posts: 4278
Registered: 1-2-2013
Location: The tiniest college campus ever....
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Woohoo!
I had ideas for a number of other compounds I could have added to the chain, but ran out of time. I can't wait to see other people's submissions.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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woelen
Super Administrator
Posts: 7977
Registered: 20-8-2005
Location: Netherlands
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Mood: interested
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Congrats to the winners and thanks to all who have contributed to this. This is home chemistry at its best. I really like this kind of competitions
and I am eager to see the results of the contributions. It really irked me that I could not contribute myself, due to little available time. I already
am very busy with my work and additional studies for nearly a year now and I wish I could find more time for experimenting. When you are young(er)
then money is the limitation, when you grow older then time usually is the limitation, but I am quite sure there will be a time again that both
limitations are removed for me (at least to some extent, within reason).
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Amos
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Wow, 38 compounds? I can't wait to see these writeups! TAS, thanks for initiating this competition, and for being so generous with your rewards. Your
contribution is probably going to put a lot of formerly very obscure information right under the amateur scientist's eye. Thanks to everyone that put
so much work into researching and making these compounds, too. I can't wait to make them all myself, when my hot plate stops being broken :/
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aga
Forum Drunkard
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38 !?
WOW.
Very well done indeed.
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smaerd
International Hazard
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Mood: hmm...
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38 compound!? That's absurd.
That sounds like a cool coordination compound draconic acid  .
I gotta see these write-ups seriously.
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Volanschemia
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Posts: 340
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Location: Victoria, Australia
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Mood: Pretty much all of them!
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Alright, here's the competitor's submissions.
Pinkhippo11's writeup is attached and the photos of his compounds can be found in this Imgur album.
zts16's entry can be found in this dropbox link.
mayko's, DraconicAcid's and TheVolatileChemist's writeups and pictures are in the .rar files attached.
Attachment: DraconicAcid.rar (1.4MB)
This file has been downloaded 451 times
Attachment: mayko.rar (1.7MB)
This file has been downloaded 561 times
Attachment: The Volatile Chemist.rar (3MB)
This file has been downloaded 406 times
Attachment: Pinkhippo11 (Writeup Only).xlsx (16kB)
This file has been downloaded 535 times
[Edited on 9-7-2015 by TheAustralianScientist]
[Edited on 9-7-2015 by TheAustralianScientist]
"The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and
vapor, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the
Persian king" - Johann Joachim Becher, 1635 to 1682.
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blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
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What does a tooter Luddite like me need for *.rar files?
[Edited on 9-7-2015 by blogfast25]
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woelen
Super Administrator
Posts: 7977
Registered: 20-8-2005
Location: Netherlands
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Mood: interested
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You need the unrar tool fo reading rar files. Modern tools like 7zip (freely available) also can handle rar files.
http://www.7-zip.org/
[Edited on 9-7-15 by woelen]
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blogfast25
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Thanks, woelen.
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woelen
Super Administrator
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Very very good to see all these contributions with pictures
I found one error in PinkHippo's sequence, but fortunately that error did not break the chain, he just made another compound than he mentions.
Step (11) does not make anhydrous copper nitrate. Making anhydrous copper nitrate is very difficult and only in the 1960's this elusive compound was
produced, by reacting copper metal in a mix of liquid NO2 and ethyl acetate and crystallizing the solvated compound Cu(NO3)2.xNO2 and then very
carefully heating this compound to 80 C or so to drive off the NO2 and leave Cu(NO3)2 behind, which is a volatile covalent compound.
PinkHippo most likely made a basic cupric nitrate.
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
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Excellent !
Congratulations to all participants, and also to the organiser(s).
The results are wonderful, and should befinitely be downloaded & saved by all !
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Amos
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Registered: 25-3-2014
Location: Yes
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I was under the impression that anhydrous copper salts couldn't be dissolved in water again if their hydrate had already been produced. That would
count as making the same compound twice.
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aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
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Solvated Copper salts are not the same thing as a copper salt complex with water in it's crystal structure, or are they ...
Sounds like nit-picking to me.
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DraconicAcid
International Hazard
Posts: 4278
Registered: 1-2-2013
Location: The tiniest college campus ever....
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Mood: Semi-victorious.
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Quote: Originally posted by Amos  | | I was under the impression that anhydrous copper salts couldn't be dissolved in water again if their hydrate had already been produced. That would
count as making the same compound twice. |
\
No, because aqueous salts aren't hydrates. And the aqueous salt wasn't counted as a separate compound anyway.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Zephyr
Hazard to Others
Posts: 341
Registered: 30-8-2013
Location: Seattle, WA
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Thanks Ben! Participating in this competition has been very fun and educational.
| Quote: Originally posted by woelen | Very very good to see all these contributions with pictures
I found one error in PinkHippo's sequence, but fortunately that error did not break the chain, he just made another compound than he mentions.
Step (11) does not make anhydrous copper nitrate. Making anhydrous copper nitrate is very difficult and only in the 1960's this elusive compound was
produced, by reacting copper metal in a mix of liquid NO2 and ethyl acetate and crystallizing the solvated compound Cu(NO3)2.xNO2 and then very
carefully heating this compound to 80 C or so to drive off the NO2 and leave Cu(NO3)2 behind, which is a volatile covalent compound.
PinkHippo most likely made a basic cupric nitrate. |
Thanks for catching that woelen, I'm glad it doesn't break the chain.
| Quote: Originally posted by Amos | I was under the impression that anhydrous copper salts couldn't be dissolved in water again if their hydrate had already been produced. That would
count as making the same compound twice.
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In addition to it not being the same hydrate, the rules state that the same hydrate can be revisited so long as it is not counted twice:
| Quote: Originally posted by Rules | Hydrations are permitted. The chain can be continued from any hydrate, even if it has already been visited, as long as a hydrate is not counted
twice.
(Eg. CuSO4.5H20 -> CuSO4 -> CuSO4.5H20 -> CuCl2 is valid, as long as you don't count the pentahydrate twice.)
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Sulaiman
International Hazard
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Registered: 8-2-2015
Location: 3rd rock from the sun
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great! ... congratulations to participants and organisers,
nice to have pictures with the documentation,
good to see all of the different compounds and their colours.
educational and inspiring
well done.
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blogfast25
International Hazard
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| Quote: Originally posted by aga | Solvated Copper salts are not the same thing as a copper salt complex with water in it's crystal structure, or are they ...
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Solvated copper salts are by definition mixtures, not 'pure substances', thus cannot qualify as compounds.
[Edited on 9-7-2015 by blogfast25]
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Amos
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Location: Yes
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I was specifically told while preparing for the competition that it would be illegal to dissolve copper(II) hydroxide in sulfuric acid at any point in
the chain after already making copper(II) sulfate or using it once. So how is that any different from what you all are saying?
[Edited on 7-10-2015 by Amos]
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Volanschemia
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Posts: 340
Registered: 16-1-2015
Location: Victoria, Australia
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Mood: Pretty much all of them!
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I legalized revisiting hydrates since it would be almost impossible to react, for example, anhydrous Copper(II) Sulphate, with anything without
revisiting a hydration state and because revisiting a hydrate gives you no where near as many other opportunities as revisiting compounds.
"The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and
vapor, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the
Persian king" - Johann Joachim Becher, 1635 to 1682.
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The Volatile Chemist
International Hazard
Posts: 1981
Registered: 22-3-2014
Location: 'Stil' in the lab...
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Mood: Copious
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Wonderful job everyone! PinkHippo's prep deserved the win, great job! I don't really want to download his xlsx file just to have to upload it to
Google drive to read it (I have Open Office only), did he reduce the copper(II) ferricyanide to a copper(I) compound at the end before heating?
Darnit, I thought I was unique in figuring out that procedure... It works for producing some strange Cobalt compound when a Cobalt(II) salt is used
instead.
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Texium
Administrator
Posts: 4516
Registered: 11-1-2014
Location: Salt Lake City
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Mood: PhD candidate!
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| Quote: Originally posted by TheAustralianScientist | | I legalized revisiting hydrates since it would be almost impossible to react, for example, anhydrous Copper(II) Sulphate, with anything without
revisiting a hydration state and because revisiting a hydrate gives you no where near as many other opportunities as revisiting compounds.
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Yeah, I had planned out the part of my chain where I produce anhydrous CuCl2 from CuI and
Cl2 before that was added to the rules, and had decided to dissolve it in methanol to avoid making the dihydrate a second time. Turns out
it worked in my favor, I guess! Good job, everyone else who participated. I just got back from vacation. I have a lot of reading to do on here.
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Volanschemia
Hazard to Others
Posts: 340
Registered: 16-1-2015
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No, Copper(II) Hexacyanoferrate(III) wasn't in his chain. The last three steps in his chain were Copper(II) Dichromate -> Copper(II) Chromate
-> Copper Chromite.
"The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and
vapor, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the
Persian king" - Johann Joachim Becher, 1635 to 1682.
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