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draculic acid69
International Hazard
Posts: 1371
Registered: 2-8-2018
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Horseheads can also be made out of timber. A 1"x1"x2" block of pine with 12mm holes drilled for vertical and horizontal poles with a few 4mm holes for
screws to tighten things in place works for lighter things. I wouldn't use it for a 1L full of water but smaller things are fine
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Rainwater
National Hazard
Posts: 798
Registered: 22-12-2021
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Mood: indisposition to activity
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You may find this post processing analysis useful
https://youtu.be/DyAKtS1b3SQ
"You can't do that" - challenge accepted
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arkoma
Redneck Overlord
Posts: 1761
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
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Mood: украї́нська
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So far, the handiest things I've been printing are funnels, ones that fits a 24/40 taper and perforated plates for filtration. In my mobile, so i will
edit in some pics later.
"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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scitiana
Harmless
Posts: 4
Registered: 26-10-2022
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in my search for a affordable catalyst i stumbled across this
has anyone here got experience working with thse? cus it seems to me that this would be a relatively cheap catalyst for a ostwald reactor
throwing science at the wall and seeing what sticks
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ave369
Eastern European Lady of Mad Science
Posts: 596
Registered: 8-7-2015
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Today I've made a Bunsen burner. I bought a cheap Chinese made propane-butane burner for camping stove cartridges, and cut the burner in two. The
cartridge adapter with valve became part 1, the cylinder valve for my makeshift gas line; the burner head itself, attached to an improvised round
stand, became the Bunsen burner.
The two parts are connected by a gas line that is made from a silicone tube. The silicone is chemical resistant and survives heating to 250 C.
I had to craft this because the cartridge with the original burner installed was far too tall for any of my clamps and retort stands.
[Edited on 27-3-2023 by ave369]
Smells like ammonia....
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Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
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Fumehood Vacuum System
The file size of my pictures was too big to post more than 1 but I wrote about it on my blog. Very easy to build system capable of vacuum distillation
on corrosive substances.
https://gammatronscience.wordpress.com/2023/03/27/vacuum-sys...
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Rainwater
National Hazard
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Registered: 22-12-2021
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Looks better and cleaner than mine. How loud is it?
"You can't do that" - challenge accepted
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Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
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Not loud at all with the little mufflers on the exhaust. I was expecting it to be pretty noisy being on top of my FH but it's quite nice.
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Rainwater
National Hazard
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PS. CaSO4 is a ;>/"& to clean. This may be a cleaner alternative, does require filtering the gas stream
http://www.sciencemadness.org/talk/viewthread.php?tid=159094...
"You can't do that" - challenge accepted
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Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
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Nice write up! I did a smaller scale reaction yesterday and luckily the CaSO4 broke up with a little shaking. I may have to use a metal rod to break
up the pieces in this run but I work at a plant with an ammonia chiller system and I found a place where I can bleed some off into a bottle of water.
Boom! Free NH4OH of the highest concentration I can make. I dont need anhydrous, just a more concentrated solution than what is available at the
store.
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Organikum
resurrected
Posts: 2329
Registered: 12-10-2002
Location: Europe
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Mood: busy and in love
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Quote: Originally posted by earpain  |
.......
And then, the Monstrosity
........
Once that is finished, i simply slide a 500ml RBF on that bottom receiver elbow piece, connect my vacuum source to the special straight vacuum adapter
which is slowly rendering vacuum angled take-off's obsolete.
Then i proceed with a Vacuum Fractional Distillation
In such a way where it is most ideal to use <100ML flasks as the stillpot, but crucial to use serious BIG BOY glassware to condense and collect.
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You still have to change receiver flasks between fractions and for this to disconnect the vacuum? Also it would seem to me that you will have quite
some distillate collecting in the vacuum adapter not able to run down into the collecting flask, thats somewhat beating the purpose isn't it? I would
have thought for 100 ml boiling flasks the shortway thing on top of the small flask would completely suffice. Looks grandiose though, no doubt on
this!
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Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
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Mood: PhD candidate!
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| Quote: Originally posted by earpain | Now that DCM is gone, I've been plagued by the tediousness AND the mechanical yield loss off having aq. layers 10 or more times the volume of my
compound. And all the organic non-polar solvents still sold to the public either boil at WAY TOO HOT degrees celsius, or just suck in general because
they hide water or they dont really dissolve stuff(naphtha).
OR I have to make them from scratch! diethyl ether, chloroform, this isn't over! |
Two words: ethyl acetate.
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Morgan
International Hazard
Posts: 1660
Registered: 28-12-2010
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I repurposed my old 35 mm photo lab film developing tank by placing a piece of steel wool inside it and then putting the lid back on. To that I
attached a dust collector/bellows that fits over a drill bit to catch sawdust or whatever when drilling into walls or ceilings. Then just a magnet to
hold it down. It's strangely simple but really gets going when blasted with a second torch. It seemed a lot of mass to be slinging back and forth,
uncertain if the silicone bellows would hold up.
https://youtu.be/rBeaZNxOQYc
https://youtu.be/WXUVMTi8cZU
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j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
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Broken frit funnel and an evaporating dish makes a good gas bubbler. Here I am concentrating some HCl.
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arkoma
Redneck Overlord
Posts: 1761
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
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Mood: украї́нська
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Sum broken gear in sum lab. Pun intended. Must be a coarse frit though.
"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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Organikum
resurrected
Posts: 2329
Registered: 12-10-2002
Location: Europe
Member Is Offline
Mood: busy and in love
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Magnet stirrer broke needed a quick replacement.
Motor is from a battery lawn trimmer - complete overkill but due to its mass it needs no big balancing. Magnets are Sm/Co - I had too many Neodyms
dying already.
Not shown is the lab-power supply I use now, I will later use a 14V PS and a 5 buck speed controller (PWM). It pulls now in the worst case 1,5 Watt.
Changes I would make now: Magnets a bit more apart like 5 mm.
It is perfect and powerful with RBFs and eggs.
  
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