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Homemade and Repurposed Lab Gear
You could just run the gas through an immersed tube, or through a flask immersed in cold bath. I mig ...
14-2-2021 at 01:43
by: Fyndium
Mantle weak magnet issue fix?
Breaking joints is one thing I'm worried about because of the teflon plug that expands when heated, ...
14-2-2021 at 01:25
by: Fyndium
Caution when bottling aerosol contents
I suggest refluxing the extracted fluid in order to drive off majority of the butane/propane. It see ...
13-2-2021 at 13:48
by: Fyndium
Bad days in the lab or with glassware?
I've been afraid of the tape because it could concentrate a lot of force on a small area and spreadi ...
13-2-2021 at 00:54
by: Fyndium
Decent vacuum pump
Diaphragm pump is likely more resistant against chemicals than rotary vane oil pump. I've been using ...
13-2-2021 at 00:51
by: Fyndium
Bad days in the lab or with glassware?
Yep, the liquid stuff that doesn't taste or smell anything and is used on wood, babies and other stu ...
12-2-2021 at 15:37
by: Fyndium
Delrin as paraformaldehyde source?
Possibly if a catalyst is used with sufficient temp, it could form formaldehyde in situ. If the pyro ...
12-2-2021 at 11:07
by: Fyndium
Bad days in the lab or with glassware?
I have used paraffin oil for my joints for a long now. It gets pretty thin in hot joints, but adding ...
12-2-2021 at 11:03
by: Fyndium
Mantle weak magnet issue fix?
What complications overhead stirring can cause, except for having difficult time doing vacuum jobs?
12-2-2021 at 10:44
by: Fyndium
Delrin as paraformaldehyde source?
Delrin can be readily purchased as bar or sheet stock for less than 10€/kg basically everywhere. W ...
11-2-2021 at 14:12
by: Fyndium
UK sulphuric acid
You wanna concentrate sulfuric acid, buy a couple of cheap sacrificial flasks from china and blast t ...
11-2-2021 at 11:34
by: Fyndium
Delrin as paraformaldehyde source?
Ah, this was that I read around somewhere. Thanks, but no thanks. HCl'd be bad anyway because it wou ...
11-2-2021 at 11:21
by: Fyndium
Mantle weak magnet issue fix?
HDPE melts at 110-130C so for boiling water it'd do, but for any other use it will give up. Also, HD ...
11-2-2021 at 11:10
by: Fyndium
What to do with 1,4-dioxane tar
Just got rid of some distillate char by collecting them when hot in a tin can and discarding it in t ...
10-2-2021 at 23:41
by: Fyndium
Making ice in winter to cool the house in summer
Yep, storing ice over summer has a very long history, probably longer than what's written. The scale ...
10-2-2021 at 23:39
by: Fyndium
Can you store 95% sulfuric acid in HDPE for a long time?
They store sulfuric acid almost exclusively in HDPE canisters. I've always got mine in them, even th ...
10-2-2021 at 23:34
by: Fyndium
Mantle weak magnet issue fix?
Thanks, put one coming.
10-2-2021 at 14:28
by: Fyndium
Mantle weak magnet issue fix?
My mantle might not actually be the culprit, but a chinese 2L flask that has been made slightly too ...
10-2-2021 at 13:15
by: Fyndium
Delrin as paraformaldehyde source?
I got some delrin stock which I machined boss heads for myself, and got a vat-ful of chips and turni ...
10-2-2021 at 11:35
by: Fyndium
Does evaporation release ions into the air?
Effervescence indeed carries over ions, as it's not gas that comes over, but aerosol particles, whic ...
10-2-2021 at 11:25
by: Fyndium
benzyl alcohol oxidation
I might do a writeup, but sadly I don't have any pictures. I could, although, to the run again in cl ...
10-2-2021 at 11:20
by: Fyndium
Methyl Ethyl Ketone purification?
Ah, my bad, didn't look thoroughly enough.

It appears that I might want to first fractionate the ...
10-2-2021 at 05:28
by: Fyndium
Methyl Ethyl Ketone purification?
I couldn't find a good info on the matter, so how could MEK be purified most conveniently when it ha ...
9-2-2021 at 13:31
by: Fyndium
Anti bike theft agent
File a patent for U lock that has core made of pressurized tube which contains a solution of denaton ...
7-2-2021 at 09:11
by: Fyndium
benzyl alcohol oxidation
If anyone's interested, I could post detailed synthesis of BzH with HNO3. Did it a couple of times p ...
7-2-2021 at 09:02
by: Fyndium
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