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What happened to NileRed, NurdRage, Chemplayer and Doug?
Doug is alive and well, just busy. |
14-9-2021 at 11:27
by: Praxichys |
Glassware stuck together by sulfur from sulfur monochloride
Worst case you can use a small point chisel and a hammer to break the stopper, recover the product, ... |
14-9-2021 at 06:49
by: Praxichys |
Oxalyl Chloride Challenge
Well, beans. Back to the drawing board. |
13-7-2021 at 07:09
by: Praxichys |
Oxalyl Chloride Challenge
[rquote=662585&tid=82462&author=S.C. Wack]My guess is that it would not be unwise to use an ... |
12-7-2021 at 06:43
by: Praxichys |
Oxalyl Chloride Challenge
My lab is being moved but there is a lot of promise in (trihalomethyl)arenes like benzotrichloride a ... |
7-7-2021 at 07:42
by: Praxichys |
thermoelectric cooling bath
I'd ditch the thermoelectrics for chemistry applications for many reasons:
1. The latent heat of ... |
6-7-2021 at 05:12
by: Praxichys |
Is there anything interesting I can do with Urea?
Urea and ammonium nitrate mixed and heated with a silica catalyst gives guanidine nitrate at about a ... |
1-7-2021 at 09:17
by: Praxichys |
The Royal Society’s Wholehearted Endorsement of Hobby Chemistry
This is a fantastic reference for handling affairs around US law enforcement. It's a great watch and ... |
1-6-2021 at 14:03
by: Praxichys |
Alternatives to paraffin
[rquote=661090&tid=157550&author=Sulaiman]Gasoline?
[/rquote]Considering most gas these day ... |
1-6-2021 at 06:58
by: Praxichys |
Buying calcium cyanamide in the USA?
I'm not sure about buying it but it can be made fairly easily -- simply roasting calcium cyanurate y ... |
30-5-2021 at 20:32
by: Praxichys |
Testing Quartz Wool vs Borosilicate Wool
Regular glass strongly attenuates ultraviolet light while quartz passes most of it. If you have a UV ... |
27-5-2021 at 15:26
by: Praxichys |
Custom Organic Synthesis Costs
My LLC is a custom synthesis shop and I have reactors up to 50L. I get contracts occasionally but so ... |
27-5-2021 at 13:00
by: Praxichys |
European Sulfuric Acid Ban
[rquote=660857&tid=155798&author=Fyndium]Possession has 1 year transfer period, after which ... |
27-5-2021 at 12:47
by: Praxichys |
The Fumed Silica Mystery
Are you sure the fumed silica isn't simply sintering because of the heat? |
27-5-2021 at 12:38
by: Praxichys |
The Royal Society’s Wholehearted Endorsement of Hobby Chemistry
All right, so my brother in law is a police officer and here's what he has to say:
No lawyer on t ... |
27-5-2021 at 12:35
by: Praxichys |
Acetone - Rust-Oleum Automotive vs Klean Strip brands
Per HAZCOM and 29CFR 1910.1200, the remainder should be water as there are no other hazardous substa ... |
27-5-2021 at 11:54
by: Praxichys |
how would it change if world population went to 500m?
This is an interesting thought experiment. 500M out of 7B is 1/14, which would be disastrous. Imagin ... |
17-5-2021 at 11:26
by: Praxichys |
What makes liquor taste like rubbing alcohol?
"Fusel alcohols" are commonly formed as side products when fermenting anything other than clean suga ... |
26-4-2021 at 07:31
by: Praxichys |
distilling vinegar
The boiling down part is a pain. It is an all-day project; prepare for a steamy kitchen that reeks o ... |
26-4-2021 at 05:36
by: Praxichys |
Effecting a separation of two, nearly identical compounds
I was not able to find solubility data on urea oxalate but did find mentions that it was fairly inso ... |
22-4-2021 at 10:28
by: Praxichys |
Effecting a separation of two, nearly identical compounds
I do not think heating to decompose the urea will work. At best you will be left with a mess of cyan ... |
20-4-2021 at 16:11
by: Praxichys |
Demonstrations about the science of plastics
Here are a few ideas:
- Urethanes and their properties, urethane expanding foam
- Plastic foams ... |
20-4-2021 at 06:42
by: Praxichys |
why still lead in paints that are labeled "Lead Safe" ?
[rquote=657476&tid=157250&author=Sulaiman]lead occurs naturally in soil, 15 to 40 ppm,
http ... |
20-4-2021 at 05:49
by: Praxichys |
Most toxic compound OTC?
There are many varieties of common mushrooms rich in amatoxins, some as seemingly innocent as the li ... |
20-4-2021 at 05:43
by: Praxichys |
Erlenmeyer vacuum filtration?
A water aspirator at full bore can pull down to about 1.5 psia, which is ≈90% of a full vacuum and ... |
16-4-2021 at 04:37
by: Praxichys |
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