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Does anyone has an access to SciFinder to help in something?
There is a place in references for those requests, you might want to ask for access to it. Or at l ...
20-1-2022 at 08:30
by: Dr.Bob
Ion exchange resin from Brita filter
Are you sure that the pure black is not activated charcoal or carbon? That is often in filters to ...
14-1-2022 at 18:19
by: Dr.Bob
2021 Secret Santa - Sign up here
I want to thank arkoma for the box of goodies I got. It took me a few days to get to the package, ...
10-1-2022 at 18:46
by: Dr.Bob
DIY UV Visualisation chamber
If you are in the US, I have a variety of UV lamps, some single wavelenth at 254 and 265, and a few ...
2-1-2022 at 14:12
by: Dr.Bob
Question about Grignard reaction
The first step is a classic Grignard starting material. The bromobenzene is one of the best halides ...
29-12-2021 at 10:22
by: Dr.Bob
Questions about piranha solution.
I have tried Piranha solution for some frits and other very dirty glassware, and it works on somethi ...
28-12-2021 at 10:27
by: Dr.Bob
Science equipment looking for a home
Now that Christmas is over, I am trying to do some Spring Cleaning early in the books area.

I ...
28-12-2021 at 08:39
by: Dr.Bob
The 2021 Christmas greeting thread
Merry Christmas to all and to all a wonderful new year, especially in the lab.
25-12-2021 at 08:46
by: Dr.Bob
Acidic Al2O3 for chromatography,a request for advice.
There are specs available for how neutral alumina is treated to make it either basic or acidic. Ju ...
28-11-2021 at 17:52
by: Dr.Bob
2021 Secret Santa - Sign up here
Just to let people know, I have sent some bonus stocking stuffer packages to some of the people in S ...
26-11-2021 at 05:11
by: Dr.Bob
[Video] Making tert-amyl acetate. grape aroma
Great job. I know that isoamyl acetate smells like bananas for sure, made that years ago, but have ...
24-11-2021 at 17:30
by: Dr.Bob
Lab equipment and glass where needed:used
If you can say where you are, it might be easier to get a mentor. If you were near NC, I would be ...
16-11-2021 at 05:55
by: Dr.Bob
Lab equipment and glass where needed:used
Where are you located, Mineman? If west coast, then Zephyr is ideal and closer for shipping costs ...
15-11-2021 at 11:56
by: Dr.Bob
Custom Organic Synthesis Costs
[rquote=660877&tid=157469&author=Fyndium]Do you guys perform only tried synthesis, or do you ...
24-10-2021 at 17:50
by: Dr.Bob
Which range for a good refractometer?
No refractometers measure the bending of light, not the rotating of light. You need a polarimeter f ...
14-10-2021 at 05:54
by: Dr.Bob
Which range for a good refractometer?
I think I have a rather nice old one in a box somewhere, if anyone is interested in one in the US. ...
12-10-2021 at 17:19
by: Dr.Bob
Glycine anhydride, its preparation and cleavage to a dipeptide
Making the anhydride of most amino acids scrambles the stereochemistry (racemizes them). So for mo ...
4-10-2021 at 12:24
by: Dr.Bob
Non-polar chromaphores
The test mixture that we used to use included nitroacetophenone, nitroaniline, nitroanisole and a fe ...
30-9-2021 at 06:45
by: Dr.Bob
Big Glassware Sale!
I sent you an email with an interested person if you have much left.
27-9-2021 at 15:57
by: Dr.Bob
Mystery Glassware Identification Thread
I have seen the flasks with two inlet/outlets used as vacuum traps for aspirators, you hook the bott ...
23-9-2021 at 18:35
by: Dr.Bob
Filtering hot saturated solutions - ideas wanted
Here are some examples of these:

https://www.amazon.com/Chemglass-Filter-Buchner-Jacketed-Porosit ...
18-9-2021 at 18:36
by: Dr.Bob
Synthesis of diethyl diethylmalonate
I have actually alkylated diethylmalonate before (with a complex alkylating agent, not ethyl bromide ...
18-9-2021 at 18:31
by: Dr.Bob
Filtering hot saturated solutions - ideas wanted
The make porcelin buchner funnels which are jacketed for heating or cooling, I have a few of them, a ...
17-9-2021 at 07:09
by: Dr.Bob
Plants High in Triglycerides
Canola, aka rapeseed, oil, is good for biodiesel and grows in Canada, not sure how well in Alaska. ...
1-9-2021 at 10:45
by: Dr.Bob
Hand vacuum pump vs mechanical
I second that, a mechanical vacuum pump will barely work for an easy filtration, but not for a disti ...
30-8-2021 at 10:39
by: Dr.Bob
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