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Best way to make dry ice
You can buy or lease small or large cylinder's of CO2 and there is an adapter made special for makin ...
23-3-2017 at 06:00
by: Dr.Bob
Under what conditions should butyllithium be used at -78c?
Most deprotonations are done in THF or ether, as they are better solvents for anions than hexane. ...
22-3-2017 at 16:56
by: Dr.Bob
Science equipment looking for a home
I have a lot of volumetric pipettes still here, from 1 ml to 50 or 100 ml, literally boxes of them, ...
17-3-2017 at 17:00
by: Dr.Bob
Using a Vigreux column as an air cooled condenser?
I use Vigreux columns as air condensers all of the time. If you are distilling something with a Bp ...
16-3-2017 at 16:38
by: Dr.Bob
Rotovaps (4 avail) HPLC colums, glasseware - up for auction! starts today ends 3/15
If anyone wants used HPLC columns, I have some I would be happy to sell one at a time, rather than d ...
13-3-2017 at 07:16
by: Dr.Bob
PyBOP for sale
[rquote=477174&tid=72829&author=adk]TNT also available, cost depending on destination (ask f ...
9-3-2017 at 19:33
by: Dr.Bob
Double Bank vacuum manifolds (3, 4 or 5 port) - what are they useful for?
I suspect that many are rigged, I have also tried to buy a few specific items at them, many had comp ...
9-3-2017 at 19:30
by: Dr.Bob
KleanStrip denatured alcohol - what is the unlisted additive?
Yes, you can get an ATF license for specific uses to buy non-de-natured (drinkable) ethanol without ...
7-3-2017 at 19:03
by: Dr.Bob
Paypal refund policies & online Escrow services - anyone have experience with these?
I'm trying to u2u you, but the u2u system crashes when I send it. Please mail me.

[Edited on 7- ...
7-3-2017 at 05:24
by: Dr.Bob
Ideas for OC synthesis with OTC starting materials
A few of those transformations are easy, most are not, and steroids are among the hardest compounds ...
6-3-2017 at 17:36
by: Dr.Bob
Chemglass products - what are the thoughts on the quality of their products?
Great stuff, if you can buy it cheap do so. Even if you get too much, you can sell 24/40 stuff on ...
6-3-2017 at 13:03
by: Dr.Bob
Account with Fischer Scientific or Sigma Aldrich for home lab?
There is a thread a few lines below asking roughly the same question. The answer is that few big c ...
5-3-2017 at 19:20
by: Dr.Bob
Mystery Glassware Identification Thread
If anyone here wants their own drying pistol, I have a few of these. I don't know if I have the ot ...
5-3-2017 at 18:45
by: Dr.Bob
Science equipment looking for a home
If anyone wants to buy the lot, I have the glassware and most other pieces to make them whole again. ...
4-3-2017 at 19:35
by: Dr.Bob
How do you decide what you want to synthesize?
There are lots of non-illegal drugs worth making: aspirin, lidocaine, viagra, dariprim, and naproxyn ...
4-3-2017 at 19:24
by: Dr.Bob
KleanStrip denatured alcohol - what is the unlisted additive?
The denatured alcohol started with has to conform to the ATF denatured list of formula in order to a ...
3-3-2017 at 17:16
by: Dr.Bob
Elementary Work on Schiff Bases
Nice job, that is not an easy prep, I have had some hard times making imines from acetophenones, eve ...
3-3-2017 at 16:56
by: Dr.Bob
Stabilizer for benzaldehyde
But BHT may not have as good a redox potential as BHT, so I'm not sure that it would really protect ...
2-3-2017 at 19:08
by: Dr.Bob
KleanStrip denatured alcohol - what is the unlisted additive?
Most paint strippers contain polymers or cellulose derivatives to make them stick to surfaces, as we ...
2-3-2017 at 19:03
by: Dr.Bob
Sodium triacetoxyborohydride
I agree that ethanol may be better for STAB, especially at RT or higher, but I have used methanol fo ...
2-3-2017 at 18:47
by: Dr.Bob
Sodium triacetoxyborohydride
Sodium triacetoxyborohydride is not very soluble, so that may be why people use DCE. I have used m ...
1-3-2017 at 20:30
by: Dr.Bob
Elementary Work on Schiff Bases
Heating the reaction after mixing, pouring the reaction very slowly into the ethanol, and letting it ...
1-3-2017 at 20:21
by: Dr.Bob
Heat bendable glass tubes
Flint or soda glass does NOT handle thermal stress well, that is why most labware is borosilicate, a ...
1-3-2017 at 10:41
by: Dr.Bob
Liquid Fuel and Oxidizer for rockets
Most perchlorates are regulated as components of illegal explosives, so that is why many are hard to ...
27-2-2017 at 20:17
by: Dr.Bob
Looking for technical documents B├╝chi Rotavapor R
I have a few old, broken motors I need to fix of several model types. I also have some parts, just ...
27-2-2017 at 14:28
by: Dr.Bob
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