2
votes
2answers
36 views
solvent pressure in separating funnels
Whenever I do a extraction or wash with say ether or pet ether and water in a sep funnel, I always have to release a lot of excess pressure after each shake. Any reason why? It is …
2
votes
2answers
32 views
Marine Natural Products
Which is your favorite Marine Natural Product and if it has been synthesised which synthesis do you like the best?
I have my favourites and I will see if there is any response befo …
2
votes
3answers
62 views
What’s a good cleaning procedure for fritted funnels?
I'm going to ask a slightly different question than general cleaning procedures for glassware. Fritted funnels can't go into a base bath, or you'll ruin the glass frit.
So how do …
0
votes
1answer
37 views
Drawing software for this site
I have answered a few questions already, but can someone please point me in the direction of appropriate drawing software for the site.
I have ChemDraw on my computer.
Thanks
2
votes
3answers
52 views
What is a general procedure for TLC?
I would like to write an educational lab that focuses on the identification of compounds using TLC. Could someone recommend where I could get the necessary solvents, silica plates, …
1
vote
2answers
85 views
An Inexpensive Carbonate Eutectic Melting Below 700 Degrees C
I need an inexpensive liquid with a melting point below 700 degrees C (preferably between 500 and 650 degrees C) and a boiling point above 700 degrees C that is non-reactive agains …
2
votes
1answer
30 views
Ethyl acetate as a Ugi reaction solvent?
Does anyone know of a report where a Ugi reaction was done or attempted in ethyl acetate?
0
votes
2answers
80 views
Best-Practices Procedure for Working with tert-Butyllithium?
The case of Sheharbano (Sheri) Sangji serves as a reminder to respect and understand the materials in a research lab. Even then, things can go wrong.
Where can I find a detailed, …
1
vote
2answers
21 views
What are the rules for posting and answering questions?
I've been a Stackoverflow.com (SOF) user for a year now and have just recently stumbled across this site. Being from SOF I have a hunch on how things should work on a site like th …
2
votes
2answers
84 views
Best practices for bringing liquid samples into a glovebox
As some one who has spent too much time doing air sensitive chemistry, I've always wondered what is the best practice for bringing small quantities of liquid samples into the glov …
3
votes
4answers
125 views
What’s your glassware cleaning procedure?
A long time ago, when I was still in organic chemistry, I practically found it better to not try to get the glassware as clean as possible, but do be fine with 99.9% clean (I never …
3
votes
2answers
39 views
Quotes for bulk quantities of chemicals
We need some help acquiring quotes for bulk (ton) quantities of chemicals. As part of our open project with the World Health Organization to find an inexpensive, enantioselective s …
1
vote
3answers
37 views
What is Molecular Gastronomy?
The other day, the subject of "Molecular Gastronomy" came up. What is it and is this a real subfield in chemistry?
1
vote
3answers
73 views
Scale-up parameters
By what maximum factor is it safe to scale up a reaction? I've heard 4X and 10X -- what do you think?
For example, let's say you're moving from bench-scale (max 12L RBF) to kilo- …
1
vote
5answers
232 views
Most Compelling Reason for Using a Paper Lab Notebook Over an Electronic Lab Notebook?
There's been a lot of time and money spent on selling the advantages of Electronic Laboratory Notebooks (ELNs). Yet many continue to use paper notebooks.
So, what's the most compe …