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Author: Subject: Getting a retort. What can I do with it?
Swinfi2
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biggrin.gif posted on 27-9-2020 at 08:57
Getting a retort. What can I do with it?


Not just any retort, its going to be made of quartz.

(Link)https://www.google.com/amp/s/h5.aliexpress.com/item/1000004963331.html

Hopefully the thing will be almost indestructible up to 1100°c assuming I don't do anything stupid like pour water on it while its glowing.

So what are some useful decomposition reactions?
Copper sulphate -> SO3?
Wood -> organics

Anything I should be particularly careful of?
I'm planning on using wood as cheap fuel would the retort be safe inside the fire?
I know MgSO4 likes to destroy glassware when cooling down. Rip 1 beaker.
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Herr Haber
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[*] posted on 27-9-2020 at 09:31


Use gas !

Are you certain that's quartz ? I mean... look at the price.


Edit: well, they do seem to specialize in high temperature materials and provide a sheet.
I might get one aswell.

[Edited on 27-9-2020 by Herr Haber]




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Fyndium
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[*] posted on 27-9-2020 at 10:27


Actually someone mentioned dipping glowing +1000C quartz glass into water does not crack it. But it doesn't mean anyone should actually do it.

Some nitrates into NO2, Oleum production, sulfuric acid distillation(mind the bumping though), etc.

MgSO4 is best to dry in an ordinary oven.
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macckone
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[*] posted on 27-9-2020 at 21:10


Not to burst anyone's bubble but I am currently getting a refund on that item from that seller.
They shipped me the wrong item (quartz round bottom with gas stem on the side) and it arrived broken.

[Edited on 28-9-2020 by macckone]
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macckone
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[*] posted on 27-9-2020 at 21:13


I just received the following message
"Hello, sorry to cause you trouble. We really don't have the same decanter as the picture. But we can re-customize, the minimum order quantity is 2, and the unit price is 120 dollars. You can think about it."
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metalresearcher
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[*] posted on 28-9-2020 at 01:34


The problem with such a retort is that you cannot clean it. The small stopper in it allows only access to a small part of the inner wall of the retort.
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Swinfi2
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[*] posted on 28-9-2020 at 01:35


The listing has gone. I've messaged the seller, if I get the same offer would someone be willing to take the second off my hands for cost?

Edit:
Just found this thread http://www.sciencemadness.org/talk/viewthread.php?tid=62217

That was 4 years ago, did you ever get the retort macckone or did they just mess you about?

[Edited on 28-9-2020 by Swinfi2]
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macckone
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[*] posted on 28-9-2020 at 19:21


Swinfi2,
I am still trying to get a quartz one. They are hard to come by. Even when you find a vendor they may not have stock.

Metalresearcher,
It is no worse than a normal 24/40 long neck flask.
You use curved brushes, acetic peracid, solvents, piranha solution, etc.
The main things you would use this kind of flask for are metal salt decomposition reactions.
Calcium carbonate is readily soluble in water, copper oxide can be dissolved with acetic acid and hydrogen peroxide, even chrome (III) oxide can be dissolved with bromic acid. Even sulfates can be removed by repeated washing with concentrated hydrochloric acid or sometimes plain water.
Carbon compounds can be graphatized in the vessel since 1000C is easily obtainable in such a retort.
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macckone
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[*] posted on 29-9-2020 at 09:52


I am going to inquiry at some of the water pipe manufacturers locally that do fused silica and quartz and see if they can make a retort.
If they can do it at a reasonable price, I will let you know.

I have a silica flask but interfacing it with borosilicate is tricky and sometimes leaky which is less than optimal.
One option is a 75 degree air cooled condenser, which will work for sulfuric acid but not sulfur trioxide.
Sulfur trioxide requires more than air cooling unless it is bubbled into sulfuric acid.
On the plus side such an air cooled condenser can be attached to a regular condenser with teflon tape because by that point it should be below 260C.

[Edited on 29-9-2020 by macckone]
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