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Hard to find, high quality reagents and glassware for sale!
Man, you have almost as much weird stuff as I do. Good luck selling it, if anyone likes Texium's s ... |
25-4-2024 at 11:15
by: Dr.Bob |
Science equipment looking for a home
Someone asked me about HPLC columns. I have a bunch, mostly very old, a few might be new, but most ... |
22-4-2024 at 16:16
by: Dr.Bob |
ITER: A useful nuclear fusion experiment or a waste of money ?
We don't need enough uranium to power the entire Earth, just enough to provide baseload at night and ... |
18-4-2024 at 06:59
by: Dr.Bob |
Synthesis of quinizarin
That's a beautiful orange. Nice work and experimental writeup. If anyone in the US wants some ... |
18-4-2024 at 06:52
by: Dr.Bob |
Science equipment looking for a home
Here are a couple of condensers I have, might sell one shortly, but I have several of the lower ones ... |
15-4-2024 at 07:24
by: Dr.Bob |
Stainless Steel Reaction Vessels
I have used these "bomb" type reactors occasionally for years, always behind a shield, hence the nam ... |
10-4-2024 at 13:59
by: Dr.Bob |
Science equipment looking for a home
Here are some photos of a bunch of 29/42 pieces that I have left and was photographing for someone, ... |
7-4-2024 at 08:08
by: Dr.Bob |
Elemental Scientific Liquidating Chemicals, glassware, and used equipment
I see what you mean, some things it is not clear the quantity or size. I would email Tom and ask ... |
6-4-2024 at 17:43
by: Dr.Bob |
Isopropyl salicylate sensitivity
isopropyl alcohol is pretty sterically hindered, so I would expect it may just be really slow, plus ... |
6-4-2024 at 17:31
by: Dr.Bob |
Acetic anhydride or acetyl chloride, that is the question...
The AcCl should work, as long as the alcohol is present with the base first and then you add the AcC ... |
2-4-2024 at 11:57
by: Dr.Bob |
Two-step preparation of biodiesel from waste soap
I would encourage you to try the NaOMe reaction with triglycerides (fat) sometime to see how that wo ... |
31-3-2024 at 13:43
by: Dr.Bob |
Acetic anhydride or acetyl chloride, that is the question...
Yes, I would not add AcCl to TEA, that is asking for side reactions. The normal prep for these rea ... |
30-3-2024 at 13:48
by: Dr.Bob |
Hard to find, high quality reagents and glassware for sale!
Got some stuff from Texium, a great deal. He even had a few things I did not already have, which i ... |
29-3-2024 at 18:42
by: Dr.Bob |
What does "fusion" mean in a chemistry procedure / book
For some compounds this might just dry them well, like ZnCl2. At their MP, there will be little H2 ... |
27-3-2024 at 11:05
by: Dr.Bob |
How hazardous is fluorine chemistry?
I did work in a fluorochemical synthesis lab for a few years with my old friend Ed, who was much mor ... |
26-3-2024 at 11:14
by: Dr.Bob |
Science equipment looking for a home
Updated the spreadsheet again. It is listed below for uploading.
I keep finding graduated cyl ... |
24-3-2024 at 09:28
by: Dr.Bob |
Is triethylamine hygroscopic?
Triethylamine may be a little hygroscopic, but not so much that a sealed container should be an issu ... |
24-3-2024 at 09:14
by: Dr.Bob |
Alternative piston shapes in engines?
[rquote=691258&tid=160192&author=Rainwater]The theoretical maxium power achieveable would be ... |
24-3-2024 at 09:06
by: Dr.Bob |
Bulk (4L) Solvents Available - Pickup in SoCal US
It's a great place to visit, wouldn't want to live there.
But that is a great post to let peopl ... |
17-3-2024 at 14:07
by: Dr.Bob |
Science equipment looking for a home
I have some old Fisher drawer organizers left that I would like to sell, or take some offers on. Mo ... |
14-3-2024 at 12:31
by: Dr.Bob |
Suggestions on vacuum pump purchase
I have used aspirators, and they are fine for occasional use, but for long periods, the water use ca ... |
14-3-2024 at 07:00
by: Dr.Bob |
Synthesis of terephthalic acid from a PET water bottle
Yiu can also directly make dimethyl TPA by heating the polyester in NaOMe in methanol. That is one ... |
9-3-2024 at 17:25
by: Dr.Bob |
Preparation of biodiesel from waste cooking oil
That is a great experimental. I have made methanol based biodiesel before, and know that ethanol i ... |
2-3-2024 at 20:44
by: Dr.Bob |
Phenyl isonitrile: the worst stench ever.
I used a few alkyl ones, years ago, and made some other small to medium ones, and they were horrible ... |
28-2-2024 at 19:16
by: Dr.Bob |
Cleaning the cooling jacket of a condenser
I often clean condensers in HCl, sodium dithionate also is good to remove iron stains. Of course th ... |
27-2-2024 at 18:32
by: Dr.Bob |
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