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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 for sale! Glassware coming soon
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
Question about university
If you really want to do that work, try the Colorado School of Mines or Missouri University of Scien ...
23-2-2024 at 11:28
by: Dr.Bob
Multiple bad experiences with AliExpress
I have been able to buy Keck clips (for work) via ebay at $2 each a few times, and they were fine. ...
18-2-2024 at 18:05
by: Dr.Bob
Science equipment looking for a home
I am back from my trip, and was asked for my email by someone, it is craigslistinnc @ gmail.com, if ...
9-2-2024 at 05:14
by: Dr.Bob
Science equipment looking for a home
Just want to make a note that I will be away for a few days, but will answer all messages once I get ...
25-1-2024 at 16:55
by: Dr.Bob
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