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Science equipment looking for a home
I've gotten back to itsafineday, it just took me a while to find the things for his kit. I apolifi ...
18-2-2019 at 09:35
by: Dr.Bob
Organic oxidizers which can be electrochemically recycled
I don't know of any oxidizer cheaper than hypochlorite, you can buy it by the tanker car load for li ...
15-2-2019 at 08:35
by: Dr.Bob
Organic oxidizers which can be electrochemically recycled
Tempo might work for that, not sure. Also some dyes (Rose Bengal maybe?) react with oxygen and UV ...
14-2-2019 at 14:17
by: Dr.Bob
Need advice on ester formation
Going to be tough, if you use 10 eq of the diol, it might work, but then you have to clean that up. ...
14-2-2019 at 14:09
by: Dr.Bob
Best Hotplate Stirrers
[rquote=598833&tid=142316&author=Abromination][rquote=598825&tid=142316&author=Dr.Bo ...
5-2-2019 at 18:30
by: Dr.Bob
Best Hotplate Stirrers
I have a couple of used Corning PC-351 stirring hotplates left that work OK. One has a fairly dirty ...
3-2-2019 at 17:12
by: Dr.Bob
How to make a Gas Liquid Diffuser, Bubbler ?
What size tube diameter and how long? Do you just need the tube, one on a jointed top, or the whol ...
3-2-2019 at 16:38
by: Dr.Bob
US source for Dufton, Bruun or Pear bulb columns?
Not sure if I have ever seen any of those exact columns (based on a quick search to try to see what ...
21-1-2019 at 07:11
by: Dr.Bob
melting point apparatus
Yes, just make sure that they are sealed at one end. I have seen many people sell open ended capil ...
17-1-2019 at 17:04
by: Dr.Bob
No lagging on dean-stark apparatus?
Insulating the Dean Stark helps it work much better. A vacuum jacketed one is ideal, but just wrap ...
16-1-2019 at 06:26
by: Dr.Bob
Pump oil for Rotary Vane - What grade?
Welch and Fisher sell general purpose rotary vac pump oil, but you can also find it at some auto par ...
14-1-2019 at 07:45
by: Dr.Bob
Nicotinamide dehydration
A simple google search brought up a few ways:

https://www.researchgate.net/profile/Sangeeta_Jha/p ...
7-1-2019 at 10:17
by: Dr.Bob
How to scrub ethyl acetate vapors before releasing into the outside air? Hundreds of neighbors are complaining.
Not sure where you are, but in my state doing anything that releases any "appreciable" solvent or ch ...
29-12-2018 at 08:59
by: Dr.Bob
Science equipment looking for a home
Home everyone had a Merry Christmas and a Happy New Year. And thank you to everyone who got glassw ...
29-12-2018 at 08:50
by: Dr.Bob
n-butyllithium
A good rubber septa would be fine, I would just secure it with some wire, so it cannot pop off or le ...
29-12-2018 at 07:54
by: Dr.Bob
Borosilicate under pressure?
For 250 ml, a glass vessel is really pushing it, even for the Ace or Aldrich pressure tubes, and if ...
27-12-2018 at 10:05
by: Dr.Bob
Free fume hoods in NC
"Two Clean Hoods work perfectly to keep work area clean. Mainly used for electronics and scientific ...
25-12-2018 at 13:15
by: Dr.Bob
Science equipment looking for a home
We have a winner. I'll do some more books soon, thanks and Merry Christmas.
25-12-2018 at 12:44
by: Dr.Bob
Science equipment looking for a home
Merry Christmas to all you science geeks out there!

In the spirit of Christmas, I have a used ...
25-12-2018 at 12:00
by: Dr.Bob
DIY Vacuum Filtration
Most basic glassware can handle a vacuum, although flat bottom flasks are much less suitable than ro ...
25-12-2018 at 11:50
by: Dr.Bob
Buying bromine from china
No reputable company will ship a kilo of bromine from China without a huge hazmat charge. If they s ...
24-12-2018 at 20:04
by: Dr.Bob
Alright looking for insight
In simple benzene, I do think of the carbons as all equivalent, and the electrons as a donut on both ...
24-12-2018 at 19:43
by: Dr.Bob
Looking For: Fluoropolymer Tubing
I have a few pieces of it as well, but I don't have a lot of specs for it. But if you want to try ...
20-12-2018 at 18:30
by: Dr.Bob
Reported posts in my outbox
Why does it not work to just select the messages I don't want and just hit "delete" at the bottom. ...
18-12-2018 at 19:33
by: Dr.Bob
Reported posts in my outbox
I just saw the same thing, but the challenge is that I cannot seem to delete them in bulk, if I sele ...
18-12-2018 at 07:28
by: Dr.Bob
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