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How strict are you about using distilled water vs nondistilled/faucet water in your reactions?
I feel as if I've met an equal number of chemists with different attitudes about how strict they are ... |
20-11-2019 at 19:28
by: Sidmadra |
Suggestions for glass joint-grease that won't get stuck after vacuum distillations?
Teflon joint sleeves are useful but I've found that if the joint isn't totally clean and free of par ... |
20-11-2019 at 13:26
by: Sidmadra |
Suggestions for glass joint-grease that won't get stuck after vacuum distillations?
I've tried a handful of grease products, silicone grease, petroleum jelly, and a few others I don't ... |
12-11-2019 at 10:39
by: Sidmadra |
cannabidiol to tetrahydrocannabinol
I remember reading a paper dealing with the total synthesis of cannabinoids many years ago, and I re ... |
22-4-2019 at 14:23
by: Sidmadra |
Modifying a diaphragm pump to achieve high vacuums - what is the limiting factor for lowest vacuum?
To the best of my knowledge, diaphragm vacuum pumps use check valves to direct the flow of the air, ... |
17-4-2019 at 19:56
by: Sidmadra |
What are some weak-chlorinating agents for chlorinating a phenolic compound?
I have a bi aryl compound, that I want to chlorinate ortho to one of the phenol groups on one ring. ... |
1-4-2019 at 02:09
by: Sidmadra |
What is the best way to go about making a nonacidic aluminum chloride solution (for an antiperspirant)?
Aqueous AlCl3 solutions are often used as very effective antiperspirants at 10-20% concentration, bu ... |
20-12-2018 at 09:05
by: Sidmadra |
Lights flickering when hotplaet goes through heating cycle - anything I can do to stop this?
[rquote=553549&tid=104988&author=Mr. Rogers]Does this happen with a regular incandescent lam ... |
16-11-2018 at 16:04
by: Sidmadra |
Lights flickering when hotplaet goes through heating cycle - anything I can do to stop this?
I recently installed from LED lights in my shop and they flicker every few seconds when my hotplate ... |
16-11-2018 at 13:42
by: Sidmadra |
High Temp Wire/Sparkplug sources? (1000c+)
I'm building a furnace that I plan to use a high voltage electric sparker to ignite, but for that I ... |
5-11-2018 at 14:49
by: Sidmadra |
Is there any feasible way to PID control a hotplate power without effecting the stirring?
I believe it is PWM because it heats in short bursts on and off, if I'm not mistaken. I'd have to ch ... |
29-9-2018 at 17:45
by: Sidmadra |
Is there any feasible way to PID control a hotplate power without effecting the stirring?
Or would doing this properly require taking apart the entire hotplate and adjusting the internal wir ... |
29-9-2018 at 16:25
by: Sidmadra |
Best locking mechanism for glass Flash Chromatography? Keck clips don't work.
Don't people generally use plastic columns for flash chromatography? As a rule of thumb I wouldn't p ... |
20-9-2018 at 17:47
by: Sidmadra |
Vac Distillation of Water keeps stalling? Too high vacuum?
You put sulfuric acid in it..? Was it concentrated? That's sketchy. Even if you drained it and put i ... |
20-9-2018 at 17:41
by: Sidmadra |
How to deal with oil mist on vacuum pumps?
[rquote=537022&tid=93293&author=beerwiz]
Are you saying I can use plain old mineral oil fro ... |
20-9-2018 at 16:25
by: Sidmadra |
How to deal with oil mist on vacuum pumps?
First, change your oil to a heavier oil, like mineral oil or a heavier vacuum oil. I've had oils off ... |
20-9-2018 at 16:13
by: Sidmadra |
Any ideas to passivate stainless steel against chlorine?
[rquote=536663&tid=92582&author=DavidJR]Is there a reason you can't just use PTFE tubing dir ... |
19-9-2018 at 13:26
by: Sidmadra |
Any ideas to passivate stainless steel against chlorine?
I'm going to try to find a company that sells PTFE lined metal tubing. A lot sell PTFE lined steel b ... |
18-9-2018 at 13:27
by: Sidmadra |
How to find the right solvent?
Metallus, as macckone said, solubility rules become iffy when you get into somewhat advanced chemist ... |
18-9-2018 at 09:31
by: Sidmadra |
Any ideas to passivate stainless steel against chlorine?
[rquote=536330&tid=92582&author=macckone]Hastelloy C276 is a workhorse in industry.
Others ... |
17-9-2018 at 17:26
by: Sidmadra |
Any ideas to passivate stainless steel against chlorine?
[rquote=536284&tid=92582&author=wg48]High phosphorous electroless nickel plating is used to ... |
17-9-2018 at 15:56
by: Sidmadra |
Klean Strip MEK discontinued?
Does your store sell this MEK substitute? I just looked up the MSDS and saw it is indeed 100% Ethyl ... |
17-9-2018 at 11:24
by: Sidmadra |
Using a cheap Rotary Evaporator...as a makeshift ball mill?
[rquote=536262&tid=92610&author=Ubya]If you plan on using plastic BBs I think they are too l ... |
17-9-2018 at 09:37
by: Sidmadra |
Using a cheap Rotary Evaporator...as a makeshift ball mill?
Solid/Solid reactions can be pretty amazing given how high the yields can be. I've got a cheap Chine ... |
16-9-2018 at 16:01
by: Sidmadra |
Any ideas to passivate stainless steel against chlorine?
I don't mind spending a bit of money for a setup to figure this out. I have tons of stainless steel ... |
16-9-2018 at 11:09
by: Sidmadra |
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