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I am a fish
undersea enforcer
Posts: 600
Registered: 16-1-2003
Location: Bath, United Kingdom
Member Is Offline
Mood: Ichthyoidal
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Announcements of Articles in Progress
If you are currently writing an article for the Prepublication forum, you may want to make an announcement here. This is to prevent two people from
independently submitting articles on the same topic.
Please note that:
Making an announcement does not constitute a "reservation" of that particular topic. The purpose of this thread is only to
advise users of each other's intentions
An announcement should only be made if you definitely intend to complete an article. Please do not use this thread to solicit opinion, or to
place conditions on whether or not you will proceed.
Announcements should not be overly broad. If you intend to write a long, wide ranging article, please state which part you intend to complete
first.
If you decide to abandon or postpone an article, you should withdraw your announcement.
Posts in this thread may be merged or heavily edited.
1f `/0u (4|\\| |234d 7|-|15, `/0u |234||`/ |\\|33d 70 937 0u7 /\\/\\0|23.
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Baphomet
Hazard to Others
Posts: 211
Registered: 19-11-2006
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Mood: No Mood
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Proposed: Preparation of Palladium Chloride catalyst from OTC materials. Includes GC/MS analysis and illustrations.
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Baphomet
Hazard to Others
Posts: 211
Registered: 19-11-2006
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Design of a High Flux Solar Gasification plant, with diagrams and explanatory notes.
In summary, HFSG technology would use solar energy to depolymerise municipal waste and produce methanol and ethanol for use as fuel.
Note: I'm looking for other people who might be able to help with the design. CAD skills would be highly regarded.
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chemoleo
Biochemicus Energeticus
Posts: 3005
Registered: 23-7-2003
Location: England Germany
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Mood: crystalline
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Illustrated WHERE?
I am not sure what you are on about.
You have to at least SHOW the experimental approach taken this far, rather than just making a 'title line'.
So where's the hard data?
Never Stop to Begin, and Never Begin to Stop...
Tolerance is good. But not with the intolerant! (Wilhelm Busch)
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Baphomet
Hazard to Others
Posts: 211
Registered: 19-11-2006
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My interpretation of the first post was that this is a thread for the announcement of articles currently in progress. If more details are required
then I will post what I have for the PdCl and HFSG articles when convenient. The Odour Control article is nearly finished and will be posted soon.
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DeAdFX
Hazard to Others
Posts: 339
Registered: 1-7-2005
Location: Brothel
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Mood: @%&$ing hardcore baby
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Propose: Generation of Ammonia via hydroylsis of urea using V2O5/Na3VO4 as a catalyst.
Not the most interesting/orignal topic but you have to start somewhere...
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12AX7
Post Harlot
Posts: 4803
Registered: 8-3-2005
Location: oscillating
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Mood: informative
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That reminds me, I've been interested in seeing urea vapor and air passed over a copper catalyst to produce NO, and thus NOx, and thus HNO3.
I should build an apparatus for that some day and see what happens. If it works well and is easy to put together, it would be an excellent addition
here, huh?
For that matter, I should "prepublish" some other things, too. It's about time I post something here...
Tim
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Engager
Hazard to Others
Posts: 295
Registered: 8-1-2006
Location: Moscow, Russia
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Mood: Lagrangian
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Completed big compilation work on tetrazole derivatives, now it is avialable on russian language, may be found here in pdf version: http://rapidshare.com/files/106232090/Tetrazoles_rus_.pdf.ht...
Now it's being translated to english, i used auto translator + hand translation, but it still need corrections to sound good, by native language
speaker, The_Davster corrected a part of it but he is very busy. Then this will be finished, i will place large pdf & forum versions of this
compilation work here in prepublications section.
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Fleaker
International Hazard
Posts: 1252
Registered: 19-6-2005
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Mood: nucleophilic
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I'm working on a few projects
Articles currently in progress at the experimental stage (expect these in the coming weeks):
Palladium on carbon, Adam's catalyst, miscellaneous catalysts and special requests. Co-authored with NERV for his expertise on nickel
catalysts.
Will cover preparation, practical usage, and (time permitting) characterization.
Synthesis of anhydrous aluminum trichloride and other halides from the elements.
Will cover preparation and subsequent purification via sublimation. I do have LiH so I may attempt LiAlH4.
Articles coming before the end of the year:
Black and White Phosphorus, An Illustrated Synthesis
Synthesis of cesium and rubidium metal from their chlorides.
Articles that are finished and pending prepublication:
The Synthesis of Dialkyl Sulfates*
Bromine, an Illustrated Synthesis
*I will likely not publish this synthesis. It makes use of hard to find precursors (oleum or chlorosulfonic acid) and it is a very dangerous
synthesis that I have had problems with on the many occasions I performed it. I do not think this is something that should even be attempted out side
of a well equipped professional laboratory. I will make available any information that members here request via U2U and answer any questions on it,
but I strongly recommend against performing the synthesis. I had bad experiences with it.
Neither flask nor beaker.
"Kid, you don't even know just what you don't know. "
--The Dark Lord Sauron
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DJF90
International Hazard
Posts: 2266
Registered: 15-12-2007
Location: At the bench
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Caesium metal  ??! I wonder what possible applications that would actually have
in the lab?
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JohnWW
International Hazard
Posts: 2849
Registered: 27-7-2004
Location: New Zealand
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Possible chemical reactions of Cs that K may not be capable of? I have heard of alkali-metal anions being obtained; - they would be VERY reactive, if
so, and could only be obtained as Cs+ with Li- or possibly Na-. Also, it may just be possible to get He or Ne to accept an electron from Cs, to form
anions He- and Ne-, isoelectronic with Li and Na, but again such a compound would be VERY reactive if it could be formed and probably stable only at
low temperatures.
Of course, samples of Cs salts would be needed in an analytical laboratory as standards for calibration of analyses of waters and minerals for Cs by
flame-photometry or atomic-absorption.
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-jeffB
Hazard to Others
Posts: 185
Registered: 6-12-2007
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| Quote: | Originally posted by DJF90
Caesium metal ??! I wonder what possible applications that would actually have
in the lab? |
A powerful getter for high-vacuum applications. My day-job lab has a fair amount of rubidium for doing spin polarization on helium and xenon, and I
think we're going to be using cesium as well, but polarizing helium-3 probably isn't a good home science project.
I've got a kg or so of pollucite that I bought on eBay years ago, and I've thought about trying to render out some impure cesium from that, but I
doubt I'll ever muster the courage. I don't have great confidence in my technique.
[Edited on 7-30-08 by -jeffB]
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plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
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Mood: Mad as a hatter
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my first and next prepublication , extraction of chromium.
I never asked for this.
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Hexavalent
International Hazard
Posts: 1564
Registered: 29-12-2011
Location: Wales, UK
Member Is Offline
Mood: Pericyclic
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An amateur chemists' guide to PPE and lab safety.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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Diablo
Hazard to Others
Posts: 113
Registered: 17-9-2011
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Mood: Autodidactic
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Electrosynthesis of trichloromethane and
Electrosynthesis of potassium permanganate
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Random
International Hazard
Posts: 1018
Registered: 7-5-2010
Location: In ur closet
Member Is Offline
Mood: Energetic
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did you actually make permanganate with electrolysis?
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Digital Hepatitis
Harmless
Posts: 12
Registered: 20-5-2012
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Mood: No Mood
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[1] Improved method of preparing 5-bromovanillin with bromodimethylsulfonium bromide (BDMS). Here's the representative article on the subject:
http://www.researchgate.net/publication/11680334_Electrophil...
Abstract:
AbstractIt has been shown that bromodimethylsulfonium bromide, generated in situ by treating dimethyl sulfoxide with aqueous hydrobromic acid, is
a milder and more selective reagent for electrophilic aromatic bromination than elemental bromine.
Fair enough -- who isn't looking for a high-yielding OTC halogenation mechanism? All one needs to facilitate a BDMS-mediated bromination is DMSO,
hydrobromic acid, acetic acid &/or hydrogen peroxide. While the yields reported by the authors are acceptable, they suffer from an appalling
overuse of hydrobromic acid that leaves this method un-scalable (unless you have liters and liters of hydrobromic acid sitting around.) By generating
BDMS in situ and refluxing the desired substrate (i.e., vanillin) in a suitable solvent (e.g., toluene) and removing the water from the
reaction vessel by means of a Dean-Stark apparatus, yields can be attained comparable to the standard bromination procedure (i.e., slowly dripping
elemental bromine in the substrate and acetic acid).
[2] Improved method for preparation of methoxy-3 methylenedioxy-4,5 benzaldehyde (myristicin aldehyde) from 5-hydroxyvanillin using a phase transfer
catalyst.
Referencing European patent 0278875, myristicin aldehyde can be prepared in good yield by refluxing tetrabutylammonium bromide and 5-hydroxyvanillin
in dichloromethane in the presence of a base.
[3] Have kicked around a vague idea for an aluminum isopropoxide FAQ detailing all of the methods for its preparation (iodine, HgCl2, etc.) but that
is way off in the distance now.
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m1tanker78
National Hazard
Posts: 685
Registered: 5-1-2011
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Mood: No Mood
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Electrolytic separation of cupronickel - yields reasonably pure copper and nickel powders.
This will be a cleaned-up report of some experiments I did which are scattered around in a long thread.
Tank
Chemical CURIOSITY KILLED THE CATalyst.
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bfesser
Resident Wikipedian
Posts: 2114
Registered: 29-1-2008
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Mood: No Mood
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Chloroform via Haloform Rxn. of Acetone and Sodium Hypochlorite
I've been unable to find a good article in here for the synthesis of chloroform by the Haloform reaction between acetone and sodium hypochlorite.
I've noticed that there's been plenty of discussion on this reaction on the board, but it seems that no one has taken it on themselves to prepare a SM
publication. I'm willing to compile the information and data myself from everything that's been posted, but as i haven't actually performed this
preparation, I couldn't give it that personal touch. Is there anyone out there who would like to work on this, or at least collaborate with me on
this? If nothing else, I need someone who can contribute photos (or permission to re-use photos from existing posts).
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Bot0nist
International Hazard
Posts: 1559
Registered: 15-2-2011
Location: Right behind you.
Member Is Offline
Mood: Streching my cotyledons.
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I can run it with extra strength bleach and acetone tonight on the stirplate, and seperate with a sep funnel, then upload the pics tom. My camera is
pretty good.
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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bob800
Hazard to Others
Posts: 240
Registered: 28-7-2010
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Extraction and Purification of Oleic Acid from Olive Oil
From this article: http://link.springer.com/article/10.1007%2FBF02631772#page-1
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Brain&Force
Hazard to Lanthanides
Posts: 1302
Registered: 13-11-2013
Location: UW-Madison
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Mood: Incommensurately modulated
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Luminescence in terbium(III) salts:
Novel quenching phenomenon with iron(III) contaminated terbium salts
An unusual lack of fluorescence in terbium hydroxide
Ion substitution in the brilliantly triboluminescent hexakis(antipyrine)terbium iodide
Formation of the triboluminescent hexaaquadichloroterbium chloride complex when crystallizing TbCl3
The role of antipyrine as a chromophore in terbium luminescence
At the end of the day, simulating atoms doesn't beat working with the real things...
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Paddywhacker
Hazard to Others
Posts: 478
Registered: 28-2-2009
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Quote: Originally posted by bfesser  | | I've been unable to find a good article in here for the synthesis of chloroform by the Haloform reaction between acetone and sodium hypochlorite.
I've noticed that there's been plenty of discussion on this reaction on the board, but it seems that no one has taken it on themselves to prepare a SM
publication. I'm willing to compile the information and data myself from everything that's been posted, but as i haven't actually performed this
preparation, I couldn't give it that personal touch. Is there anyone out there who would like to work on this, or at least collaborate with me on
this? If nothing else, I need someone who can contribute photos (or permission to re-use photos from existing posts). |
Check YouTube. There is at least one step-by-step video.
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organichem
Harmless
Posts: 19
Registered: 18-9-2013
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Mood: No Mood
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New benzofuran compound
Currently I'm working on different things;
1) more convenient route to 2,3,6,7-tetrahydrobenzodifuran [especially improving cyclisation via Mg]
2) most actual project (to start some work on SAR):
I worked out a (theoretical) way to prepare a compound I haven't heard of yet
--> step 1: Al-mediated o-selective chloroacetylation
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Waffles SS
Fighter
Posts: 998
Registered: 7-12-2009
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Coming soon with:
Synthesis of Indole by Reissert method
Synthesis Low carbon Alkoxide by Molecular Sieve 3A in new Apparatus
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