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Sep funnels and vacuum?
Do separatory funnels generally withstand vacuum? I need to do some vacuum filtrations with larger v ... |
13-6-2020 at 10:22
by: Refinery |
How the L pills in WWII era were made?
I read some news article about someone finding a WWII era cyanide capsule and I began to wonder what ... |
13-6-2020 at 09:54
by: Refinery |
Thermometer and distillation
This is an amateur question, but:
When distilling for ex acetone, it boils at around 56 NTP, but ... |
13-6-2020 at 07:33
by: Refinery |
Anti bike theft agent
I see. I've heard that it smells "fishy". One of my friend hangs out with junkies so I suppose I sho ... |
13-6-2020 at 05:23
by: Refinery |
High precision analytical balance/scale 120g at .001g & 6kg at .01g resolution
[rquote=638183&tid=73852&author=Ubya]oh boi, you are comparing a kitchen balance to an analy ... |
12-6-2020 at 09:37
by: Refinery |
High precision analytical balance/scale 120g at .001g & 6kg at .01g resolution
I suppose you could calibrate the scale with weighting a known item, like coin (or a bulk of them) a ... |
12-6-2020 at 08:23
by: Refinery |
Anti bike theft agent
tert-Butyl Isocyanide it is, then.
If there is something that causes emergency evacuation of publ ... |
11-6-2020 at 10:45
by: Refinery |
Preparation of cyanides
My experience:
Theory
1mol urea (slight excess)
1mol NaOH
1mol C (slight excess)
= 1mol NaC ... |
11-6-2020 at 10:32
by: Refinery |
Soda lime glass workability?
I made tests and soda glass softens easily and is workable. Air cooling does not appear to cause cra ... |
9-6-2020 at 10:38
by: Refinery |
Hydrothermal reactor
[rquote=637886&tid=155547&author=wg48temp9]Stay safe:[/rquote]
Absolute terms, relative p ... |
8-6-2020 at 06:20
by: Refinery |
Hydrothermal reactor
If you have access to TIG welder it will solve all your problems. Get a thick walled SS tube, weld f ... |
7-6-2020 at 23:03
by: Refinery |
3D printing useful parts - anyone doing this? I'd like to print GL45 bottle caps if possible
[rquote=637795&tid=155539&author=draculic acid69]Pla and abs won't handle anything in a lab ... |
7-6-2020 at 22:58
by: Refinery |
Polypropylene funnel considerations
Polyethene and other same group stuff in general needs superacids to react. Polyethene handles sulfu ... |
6-6-2020 at 10:00
by: Refinery |
odorless heating baths?
[rquote=637414&tid=30302&author=Mateo_swe]Are you sure?[/rquote]
I used it again, so I'm ... |
6-6-2020 at 06:45
by: Refinery |
Crystals at bottom of ammonia?
When I made ammonia by bubbling U+NaOH+H2O reactants into cold water, I noticed a faint amount of wh ... |
6-6-2020 at 06:32
by: Refinery |
Polypropylene funnel considerations
Well there's that, too. I've got some parts that are contaminated by carbon, but it basically doesn' ... |
5-6-2020 at 03:26
by: Refinery |
Polypropylene funnel considerations
I haven't yet faced a chemical that eats polyethene at NTP, and not quite sure about polypropene eit ... |
4-6-2020 at 23:01
by: Refinery |
Silica gel mystery?
https://www.sciencedirect.com/topics/neuroscience/desiccants
This source cites that: "The moistur ... |
4-6-2020 at 22:55
by: Refinery |
Silica gel mystery?
What is the proper procedure to dry silica gel?
https://www.researchgate.net/post/How_to_extract_ ... |
4-6-2020 at 11:12
by: Refinery |
Vacuum Distillation of Aniline
I really must practice my vac distilling. I've had serious issues with bumping so far. I made a blee ... |
3-6-2020 at 22:23
by: Refinery |
Vacuum glass implosion?
I was wondering if anyone has ever had a glass implosion during vacuum process? People speak about t ... |
3-6-2020 at 11:23
by: Refinery |
How long can I store ethyl bromide in a mason jar at room temperature?
Place PE membrane between cap and glass rim. You can also use al foil on top of PE to reduce permeat ... |
3-6-2020 at 04:36
by: Refinery |
What requires a fume hood?
Certain reactions must be performed outside, you are right about that. The mere heat of carbothermic ... |
3-6-2020 at 01:11
by: Refinery |
What requires a fume hood?
I'm in need of a fume hood and I designed a concept already.
I make the table out of plywood with ... |
3-6-2020 at 00:33
by: Refinery |
Aquiring grinding material for a ball mill
Carburizing is certainly an useful option for example gun parts. (Open bolt) gun lifetime can be sig ... |
3-6-2020 at 00:24
by: Refinery |
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