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Alternative hobbies that appeal to those with interest in chemistry
Wood working and other hands-on things are common among the chemists I know. Cooking and brewing ar ...
25-4-2017 at 18:28
by: Dr.Bob
Best way to store and transfer my benzaldehyde to air tight container?
Just use small glass bottles with tight lids, and fill each one nearly full, that will reduce any re ...
24-4-2017 at 06:28
by: Dr.Bob
Science equipment looking for a home
I have, but then people keep posting to ask i I have updated it lately. Part of the problem is tha ...
23-4-2017 at 15:33
by: Dr.Bob
Acetonitrile form Ammonium acetate
One of my coworkers recently tried to make a nitrile from a primary amide, using P2O5. The first run ...
19-4-2017 at 04:13
by: Dr.Bob
Opinions on this HBr synth
What route works best depends far more on why you need the HBr, and in what form, and what chemicals ...
19-4-2017 at 04:04
by: Dr.Bob
Mailing from US to UK
International postage rates were set years ago, and are based on each country collecting any amount ...
18-4-2017 at 18:00
by: Dr.Bob
Microwave didn't/doesn't melt or heat paraffin? - 2oz on high for almost 5 mins!
Hydrocarbons have almost no dipole moment or polarizable groups, so they don't absorb microwaves wel ...
18-4-2017 at 17:52
by: Dr.Bob
Breaking rock without explosives
If you drill a line of holes along a straight line near a cliff, you can fill them with expanding ce ...
18-4-2017 at 17:41
by: Dr.Bob
Elemental Boron (amorphous) - $165/lb & Mercury 4oz for $55 (3x distilled)
USPS does not ship any amount of mercury legally, but Fed Ex does ship it if done correctly. Not s ...
9-4-2017 at 19:09
by: Dr.Bob
latest glassware purchase
[rquote=479581&tid=71645&author=zts16]I just unboxed a nice set of 14/20 glassware that I wa ...
3-4-2017 at 17:17
by: Dr.Bob
Automatic pipette / condenser washer
Two thoughts, do they need any pipettes to go with it, I have a lot of them. Seriously, I have a l ...
2-4-2017 at 05:23
by: Dr.Bob
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
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