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Ubya
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Quote: Originally posted by Sulaiman  | If successful to any degree, or even if you realise why it was not,
then please report with some notes as this and similar are on my list. |
 
well i got an immiscible phase that smells of oranges (but in a weird way, hard to describe). i did in total 2 batches, from 1.1kg of peels i got 13ml
of limonene(i forgot to weight the vial so i used the density of limonene found online to get a rough estimate) 1% of the total mass, this is
consistent with the result that NileRed got on a smaller scale.
i would need to check the boiling point to be sure, maybe by using a test tube i could be able to do it (i don't have really small glassware at the
moment)
[Edited on 18-11-2018 by Ubya]
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JJay
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I constructed a fume hood. It's functional but a little too amateurish for the fume hood thread lol
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Ubya
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well the important thing is that it'd soing its job, you'll surely upgrade it in tbe future, but if you need it now i don't see why not. i've been
working on mine for 3 years (just a few minutes in the weekends) but still needs a sash and a venting system, so it's useless as a fumehood, quite
useful as a bench though.
ps cool idea using plastic wrap as window
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JJay
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It's vinyl, so it's reasonably solvent resistant and doesn't burn easily.
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Plunkett
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My scale quit working so I gave it a viking funeral à la thermite.
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arkoma
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LMAO
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
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Ubya
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hoping to get carbon quantum dots in a few hours
3g gelatin
6g water
1 drop HCl 32%
closed tight and cook at 180°C for 6 hours
still 4 hours to go
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Ubya
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well it worked
 
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Housane
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Hi Ubya,
i want tomake lemonine and was wondering how fine to grate the peel andx what distill temp.
Also what aved you just dpne i dont understand
thanks
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Ubya
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| Quote: Originally posted by Housane | Hi Ubya,
i want tomake lemonine and was wondering how fine to grate the peel andx what distill temp.
Also what aved you just dpne i dont understand
thanks |
i used a potato peeler to get just the flavedo (the part with oil glands), i then blended the peels with a blender, you don't really need a paste,
more something like granulated nuts (do you get the idea?). the distillation temperature is not critical, i mean you are making a steam distillation
so it will be close to 100°C, just don't use super high heat or you could burn the peels inside they flask if the are in direct contact with the
bottom.
for the last thing i did i just made some carbon quantum dots (nanoparticles that have the color dependent on their size) using hydrothermal
carbonization. i built a pressure vessel with pipe nipples and caps, filled with water and gelatin to half of the reactor volume, and heated it to
180°C (the vapour pressure of water at 100°C is 1 atm, at 180°C is around 10 atm) so in the vessel i got water boiling at 180 degrees and 10 atm.
the end product is literally char, but some of the carbon is in nanoparticle form
[Edited on 25-11-2018 by Ubya]
[Edited on 25-11-2018 by Ubya]
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Abromination
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Made some sulfuric acid today by NurdRages method of electrolysing copper sulfate. Very time consuming and frustrating. If the cathode isnt in just
the right place, copper won't deposit on it. I have gone through a lot of pencil lead too. I have about 100 mL of diluted acid now though.
List of materials made by ScienceMadness.org users:
https://docs.google.com/spreadsheets/d/1nmJ8uq-h4IkXPxD5svnT...
--------------------------------
Elements Collected: H, Li, B, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
Last Acquired: B
Next: Na
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Herr Haber
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I washed the dishes without my protective equipment.
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arkoma
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Azeotropic nitric Acid today. Diluted rooto and 100gms potassium nitrate. 62 gm azeotropic acid, and the same of fore run. A success..
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Σldritch
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| Quote: Originally posted by arkoma | | Azeotropic nitric Acid today. Diluted rooto and 100gms potassium nitrate. 62 gm azeotropic acid, and the same of fore run. A success..
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Coincidentally that was exactly was i was doing that day too but i used the aqueous Sodium Bisulfate method. I got about a hundred ml, only about 40%
yield; i think a lot is lost in the Calcium Sulfate, it smells strongly of nitric acid.
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hacker
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I hydrolized some ASA to salicylic acid with hydrochloric acid. I followed UnintentionalChaos' procedure. I obtained 450.11 grams of salicylic acid
product. If pure, the yield from pills is 72%. It is a powder. The powder consists of tiny crystalline needles. There are lumps in it. It smells
faintly of acetic acid. I believe it contains ASA impurities.
I think it is pure enough for making phenol.
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mayko
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I have some of this fizzing with some basic copper carbonate right now on its way to copper lactate.
I tried this out - it took 3:30 direct MAPP gas flame to burn a pinhole through a thin spot in the 1/4" piece I tested first! The side not facing the
torch was otherwise only warm to the touch.
One thing I'd recommend if you try this is to spread out a bit of starch to work the material in like pizza dough - otherwise it sticks and doesn't
easily come loose 
al-khemie is not a terrorist organization
"Chemicals, chemicals... I need chemicals!" - George Hayduke
"Wubbalubba dub-dub!" - Rick Sanchez
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TheMrbunGee
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Ammonium permanganate
Made a Video, if interested.
30g of potassium permanganate is dissolved in 120 ml 60°C water, a 50% excess of 15g ammonium chloride is dissolved in 30 ml 60°C water, solutions
are combined while stirring. Solution is cooled to 0°C and formed crystals are filtered, washed and dried. With sloppy washings 92% yield. 24g of 26g
theoretical.
Checked various properties.
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Herr Haber
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The trails from big cristals are beautiful !
Interesting tests in general too. Great vid 
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Sulaiman
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I've only got as far as the credits,
my daughter not wearing her spectacles read 'Ammonium Permanganate Synthesis' as
Armenian Pomegranate Synthsis
EDIT : Nice video, interesting oxidiser, I may try similar myself sometime.
[Edited on 12-1-2019 by Sulaiman]
CAUTION : Hobby Chemist, not Professional or even Amateur
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TheMrbunGee
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| Quote: Originally posted by Sulaiman |
I've only got as far as the credits,
my daughter not wearing her spectacles read 'Ammonium Permanganate Synthesis' as
Armenian Pomegranate Synthsis
EDIT : Nice video, interesting oxidiser, I may try similar myself sometime.
[Edited on 12-1-2019 by Sulaiman] |
Armenian Pomegranate Synthsis -that sounds like an even better video.
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arkoma
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I reckon its everyday chemistry.......at work been treating metal with phosphoric acid to kill rust and I mix our catalyzed automotive paint. 
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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j_sum1
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Thread Pruned
31-1-2019 at 15:24 |
j_sum1
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I spent the morning hydrating calcium oxide mixed with silicon dioxide powder and aluminosilicate pellets in large batches of about 40kg. 8 batches
done so far. Soon I will be able to walk to my lab without getting dirty feet.
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ninhydric1
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Performed a decarboxylation of proline using cyclohexanone as the catalyst and DMSO as a solvent. Pyrollidine smells absolutely horrendous.
The philosophy of one century is the common sense of the next.
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arkoma
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Squat to do with chemistry, but I be cruising already on my metal/carbon fiber leg. w00t
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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arkoma
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attempting diethyl ether
*edit* w00t w00t. dissolving magnesium with a lovely evolution of gas
[Edited on 2-21-2019 by arkoma]
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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