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Author: Subject: So what have you been doing?
The Volatile Chemist
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[*] posted on 2-11-2014 at 19:49


Haha, not monetary profit :)
I just mean any reactions where you can collect products.




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[*] posted on 2-11-2014 at 19:57


Seriously then, ethanol is an option.
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Jylliana
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[*] posted on 25-11-2014 at 03:10


Today I tried to make a Silver Mirror.
It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.
But, I made elemental silver out of silver nitrate.





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[*] posted on 25-11-2014 at 04:47


Quote: Originally posted by Jylliana  
Today I tried to make a Silver Mirror.
It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.
But, I made elemental silver out of silver nitrate.

Indeed it is. Where'd you get your silver nitrate?
I recently made Fehling's solution, and a LOT of Zinc Carbonate.




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Jylliana
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[*] posted on 25-11-2014 at 05:07


Quote: Originally posted by The Volatile Chemist  
Quote: Originally posted by Jylliana  
Today I tried to make a Silver Mirror.
It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.
But, I made elemental silver out of silver nitrate.

Indeed it is. Where'd you get your silver nitrate?
I recently made Fehling's solution, and a LOT of Zinc Carbonate.

It was in a bottle here at school. I guess my coworker ordered it from a webshop, which I know always has good products. I doubt that silver nitrate was the problem.




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[*] posted on 25-11-2014 at 05:26


Quote: Originally posted by Jylliana  
Quote: Originally posted by The Volatile Chemist  
Quote: Originally posted by Jylliana  
Today I tried to make a Silver Mirror.
It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.
But, I made elemental silver out of silver nitrate.

Indeed it is. Where'd you get your silver nitrate?
I recently made Fehling's solution, and a LOT of Zinc Carbonate.

It was in a bottle here at school. I guess my coworker ordered it from a webshop, which I know always has good products. I doubt that silver nitrate was the problem.

Oh, I wasn't blaming any problems on anything.
I was just curious where you got it or if you used your school's chemicals.
Regardless, elemental silver is nice! Do you have an element collection?




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[*] posted on 25-11-2014 at 05:33


I do, but I already had silver :P



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[*] posted on 25-11-2014 at 06:19


What molecule is this

http://i0.kym-cdn.com/entries/icons/square/000/005/600/its-s...
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[*] posted on 25-11-2014 at 07:01


I've been tediously doing runs of benzene synthesis from benzoic acid and calcium oxide as well as trying different combinations of reactants (calcium hydroxide, sodium hydroxide, etc). Building the set up was easy, just takes a while to get decent amounts of benzene when each run produces about 30ml of crude benzene, soon will be time to dry and redistill.
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[*] posted on 25-11-2014 at 08:28


Been working on synthesizing molecular motors. I am about to start actual lab prep of the reagents in a couple weeks.

I have also made big steps on my ultrasonic levitation device. I ran the first successful test of it last weakened. Still have big steps to go, but at least it looks promising.

Also, as a side project, I am working on Aga's nitric acid challenge!

hhhhhhhhhhhhhhh.PNG - 581kB




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[*] posted on 25-11-2014 at 16:27


I'm trying to scrape together a driver circuit for my jury-rigged gas proportional counter spectrometer. I've been trying to avoid buying things online because I wanted to do it in the spirit of a hardware store and scrapyard style build but my city seems to have no electronics stores that sell discrete components (Which is why that thread went silent). There is a Radio Shack, but they're only selling the most basic stuff and for a ridiculous markup.



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[*] posted on 26-11-2014 at 10:19


I ampouled a small amount of iodine crystals for my collection :)

Doesn't happen often, me ampouling something succesfully :)




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[*] posted on 26-11-2014 at 10:40


And with a broken arm at that.



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[*] posted on 26-11-2014 at 11:03


Quote: Originally posted by Jylliana  

It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.


Was your test tube clean and smooth? I think it should be for a good mirror. This is just a guess though.




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[*] posted on 26-11-2014 at 12:13


Total lab overhaul! Split the lab into two buildings as I now have some seriously cool equipment, I decided to have the fume hood and anything thats not too kind to electronics in one building and the other things in another. Eventually I will get it all sorted properly! So I now have a HP GC with FID and MS, also managed to get a real bargain centrifuge!! Listed on ebay as non working, phoned the guy up and and got it for £42.
It arrived today and I plugged it in, nothing!!! totally dead, then I realised that the settings switch wasnt set right. I set the controls properly and off it went WEEEEEEEeeeeeeeeeeee.
So I now have a fully functional centrifuge. Mostly working on yeast at the moment and trying to learn chemistry!




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[*] posted on 26-11-2014 at 12:39


You have a centrifuge that works on yeast !?!

Wow. That *is* eco-friendly

[Edited on 26-11-2014 by aga]




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[*] posted on 26-11-2014 at 12:56


Quote: Originally posted by Magpie  
Quote: Originally posted by Jylliana  

It did go quite well, only I ended up with chunky silver precipitate instead of the actual mirror.


Was your test tube clean and smooth? I think it should be for a good mirror. This is just a guess though.

I think it was. It was brand new. Maybe I heated it too much/too long? Is that possible?




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[*] posted on 26-11-2014 at 14:28


My Tollen's test procedure says nothing about heating. It does say the test tube should be clean.

My procedure for making the Tollen's reagent says that upon standing or heating it deposits a black precipitate which is explosive. :o This refers to the reagent with NaOH added for extra sensitivity.

[Edited on 26-11-2014 by Magpie]




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[*] posted on 26-11-2014 at 14:43


Quote: Originally posted by aga  
You have a centrifuge that works on yeast !?!

Wow. That *is* eco-friendly

[Edited on 26-11-2014 by aga]


Ha you mock me now......... we run on generators mostly here so yes in the future the generator my well run on ethanol from yeast :D.
Yeah yeah yeah I know its illegal to distill etc etc etc. I will be breaking the law and someone nosey will grass me up etc etc. YAWNNNNNnnnn




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[*] posted on 27-11-2014 at 02:24
What have I been doing?



This :)




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[*] posted on 27-11-2014 at 03:36


Quote: Originally posted by Magpie  
My Tollen's test procedure says nothing about heating. It does say the test tube should be clean.

My procedure for making the Tollen's reagent says that upon standing or heating it deposits a black precipitate which is explosive. :o This refers to the reagent with NaOH added for extra sensitivity.

[Edited on 26-11-2014 by Magpie]

Woelen's instructions and Nurdrage's instructions both say you should heat it up to roughly 60 degrees C. So that's what I did.

The initial precipitate was brown, and after heating grey. So not black and hopefully not explosive.

[Edited on 27-11-2014 by Jylliana]




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[*] posted on 27-11-2014 at 10:52


Quote: Originally posted by Jylliana  
Woelen's instructions and Nurdrage's instructions both say you should heat it up to roughly 60 degrees C. So that's what I did.

The initial precipitate was brown, and after heating grey. So not black and hopefully not explosive.

[Edited on 27-11-2014 by Jylliana]


Please read this:

http://www.sciencemadness.org/talk/viewthread.php?tid=32782#...

Fresh and spent Tollens' reaction solutions are potentially very dangerous, if you didn't know that already...

You really don't have to get to see the black crystals of Ag3N for such a solution to actually detonate.

[Edited on 27-11-2014 by blogfast25]




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[*] posted on 27-11-2014 at 11:35


I didn't leave he solution to stand for so long. I prepared everything up front so I would be done asap. Everything was done and also neutralized with HCl within the hour.I did that because I knew the leftover mix would become explosive. Imo I was well prepared and as much as possible risk free.



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[*] posted on 20-12-2014 at 21:02


What have I been doing?
Diet coke and Mentos with the daughter.
Apart from bubble nucleation I don't know the science. I gather that the combination of these two particular products alters the surface properties in a favourable fashion.
But it was fun!
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[*] posted on 21-12-2014 at 08:53


Been working on graduate school applications.

Aside from that, I've got the hard-ware for my syringe pump about finished waiting on some resistors to do the electronics then then programming(interface).

Making small amounts of progress on my lithography device but that's going to be another longer term project.

Thinking about ways to over-haul my polarimeter design...

Did a quick synthesis of a cyclodextrin derivative the other day, going to probably do another synthesis of a 3 membered heterocycle in the near future.

Lot's to do, so little time.




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