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Delrin as paraformaldehyde source?
Thermal decomposition only.
The patents referring to acids also include elevated pressures up to ... |
27-2-2021 at 16:51
by: Fyndium |
Delrin as paraformaldehyde source?
The sublimate was very sparsely soluble to water, and only adding a little NaOH made it dissolve by ... |
27-2-2021 at 10:51
by: Fyndium |
Capillary tube for vacuum distillations
I've been pulling bleeder tubes every other day when I gotta do vacuum distillations.
What I wond ... |
26-2-2021 at 15:37
by: Fyndium |
Rare and hard to obtain chemicals for sale
I wonder if anyone's ever came up with a reagent that this guy wasn't able to source. Just out of cu ... |
26-2-2021 at 14:49
by: Fyndium |
Question about pressure
Small low velocity fragments are easily stopped even by thin obstacles, so containing a fragile vacu ... |
26-2-2021 at 04:36
by: Fyndium |
Mercury in Canada
Havent measured, but I got those same switches ages ago and I'd dare to say it's far from 1g per swi ... |
26-2-2021 at 04:16
by: Fyndium |
Delrin as paraformaldehyde source?
It sort of works.
The delrin decomposes upon heating, forming white mass that coats every surface ... |
25-2-2021 at 13:35
by: Fyndium |
latest glassware purchase
[rquote=654712&tid=71645&author=Fery]long powerful condensers (the shorter one has 40 cm lon ... |
22-2-2021 at 21:48
by: Fyndium |
Joining metal vessels to ground glass?
I was thinking something more like this.
Those stirrer adapters would only work the other way, by ... |
22-2-2021 at 06:51
by: Fyndium |
Joining metal vessels to ground glass?
Only reasonable joint I could come up with is an adapter turned from PTFE having a tapered inner sur ... |
22-2-2021 at 06:11
by: Fyndium |
"Quick and dirty" seals, connectors, plugs?
Stuff that reacts or is rated as incompatible with the material it gets exposed to, usually withstan ... |
21-2-2021 at 09:38
by: Fyndium |
Acquisition and use of non-lab molecular sieves for solvent drying
Absolutely, just wanted to note that single use MgSO4 and CaO can be very cheap, from 0.5€/kg so r ... |
20-2-2021 at 10:55
by: Fyndium |
The lead salts preparation thread!
That's quite true. I wonder how the conversion can be confirmed? Also, if the mix is very impure, it ... |
20-2-2021 at 08:43
by: Fyndium |
The lead salts preparation thread!
I have a few kg of lead sulfate crap from a battery. Was wondering if I could convert it into plumbi ... |
20-2-2021 at 04:46
by: Fyndium |
Sulphuric acid
Use ebulliator and air pump. Any glass tube can be drawn into one with hand torch.
Any chips so f ... |
20-2-2021 at 03:46
by: Fyndium |
Acquisition and use of non-lab molecular sieves for solvent drying
Apparently MgSO4 will make EtOH quite dry and final drying can be done with CaO. |
20-2-2021 at 03:43
by: Fyndium |
Distillation of Flammable substances with an open flame
The color temperature chart. |
19-2-2021 at 02:28
by: Fyndium |
What is white spirit?
These products always have the cheapest ingredients suitable for the job, meaning it's just straight ... |
18-2-2021 at 01:58
by: Fyndium |
Distillation of Flammable substances with an open flame
Then yet to find an oil that withstands 400C. 
Issue with buying lab hotplate stirrers and mant ... |
18-2-2021 at 01:49
by: Fyndium |
Distillation of Flammable substances with an open flame
Get a pot, fill it with CaCl2:water about 50-70:balance ratio w/w so you can get it up to 140-150C w ... |
17-2-2021 at 12:39
by: Fyndium |
Vacuum glass implosion?
I came up with this video when googling about the subject.
https://www.youtube.com/watch?v=c4VdSu ... |
17-2-2021 at 10:54
by: Fyndium |
THIS WILL BE ILLEGAL IN FEBURARY 2021 (EU)
Same here, but once it hits the prosecutor's table, the stuff is returned at once. Got experience on ... |
17-2-2021 at 09:46
by: Fyndium |
Sand baths
[rquote=655155&tid=19089&author=Sulaiman]
To distill concentrated sulphuric acid I recently ... |
17-2-2021 at 08:47
by: Fyndium |
What is white spirit?
Does this product have any use in organic chemistry? It sounds like it might share some properties w ... |
17-2-2021 at 08:38
by: Fyndium |
Heating mantle oopsie
My mantle states HHH when the probe is not plugged in. When it is, it states the current temperature ... |
17-2-2021 at 00:47
by: Fyndium |
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