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Selling Chemicals online
The challenge is that if you ship hazmat without proper training, licenses, and DOT paperwork, you c ... |
13-12-2023 at 11:28
by: Dr.Bob |
500mL 24/40 soxhlet extractor + carrying case
Create a post, type a little text, and then select the preview post button, that lets you add images ... |
11-12-2023 at 11:05
by: Dr.Bob |
Science equipment looking for a home
I just found anbother small box of hardware, mostly clamp holders, aka bossheads, and related items. ... |
11-12-2023 at 11:03
by: Dr.Bob |
Science equipment looking for a home
If you find them just let me know what you want for them, happy to make a good deal. Thanks. |
8-12-2023 at 18:19
by: Dr.Bob |
Science equipment looking for a home
Just to make things interesting, I am in the market for some #29 stoppers, like what fit onto 1L gla ... |
7-12-2023 at 18:53
by: Dr.Bob |
What is needed to store synthesised gasses in gas cylinders
When I worked with Ed, he made many gases, and always condensed them into cylinders via dry ice cool ... |
30-11-2023 at 19:10
by: Dr.Bob |
Fluoromethylsulphonic derivatives
Triflic acid may be mor heat stable, but it is a much stonger acid, and quite reactive. The anhydri ... |
30-11-2023 at 17:35
by: Dr.Bob |
1,4-Dioxane from Ethylene Glycol and H2SO4
Likely you made some polyethylene glycol in the process, that might happen if mostly glycol and not ... |
28-11-2023 at 18:41
by: Dr.Bob |
Why Palladium's spot price keeps dropping
That's a shame, as I still have some palladium salts and metal materials. If people are every look ... |
28-11-2023 at 18:17
by: Dr.Bob |
ITER: A useful nuclear fusion experiment or a waste of money ?
I would agree that many of the big fusion plans stated are not very practical, the capital costs of ... |
28-11-2023 at 18:03
by: Dr.Bob |
Extended length transfer needles
I loved the 20G ones, need to order some 18G ones. Thanks. |
28-11-2023 at 17:35
by: Dr.Bob |
Science equipment looking for a home
I have lots of them. I typically sell all jointed flask stoppers for for $5 each, but can make a de ... |
28-11-2023 at 12:23
by: Dr.Bob |
Anyone go to university chemistry seminars? Or view chem department profiles?
I have been lucky enough to go to talks by many great scientists, from Nobel award winners to great ... |
23-11-2023 at 18:56
by: Dr.Bob |
Anyone go to university chemistry seminars? Or view chem department profiles?
I used to go to many university seminars, as well as internal and external corporate ones, plus plac ... |
22-11-2023 at 17:58
by: Dr.Bob |
2023 Science Madness Secret Santa – The fun begins!
Mad Hatter,
Got your postcard yesterday, it reminded me of a weekend in Vermont one winter many ... |
16-11-2023 at 17:04
by: Dr.Bob |
Why do we need so many elements (and energy) ?
If you really want to see the details on energy use and sustainability, there is a somewhat depressi ... |
9-11-2023 at 11:14
by: Dr.Bob |
Distillation Newbie (my 2nd post ever!)
Making an ester from the acid and alcohol is always fun, or cleaving ethyl acetate into ethanol with ... |
7-11-2023 at 10:37
by: Dr.Bob |
A foray into phenethylamines of the Shulgin kind
Beautiful writeup, I wish any of the papers I try to follow was as thorough, detailed and had photos ... |
7-11-2023 at 10:33
by: Dr.Bob |
Mild alkylation via excess AgNO3 and alkyl halide
That sounds like an interesting way to alkylate a tough substrate. I am not real familiar with tha ... |
7-11-2023 at 10:29
by: Dr.Bob |
Sources for buying chemicals from China
It depends on what chemicals. Most things are much simpler to get from near by than from china, ot ... |
24-10-2023 at 17:14
by: Dr.Bob |
The Short Questions Thread (4)
I just checked and it seemed to work fine for me:
=MOD(2387373278378,1000) provides 378 for me.
... |
18-10-2023 at 16:54
by: Dr.Bob |
The Short Questions Thread (4)
Or just use the MOD function and do X MOD 1000, which will return only the remainder of a division b ... |
18-10-2023 at 09:03
by: Dr.Bob |
Looking for a supplier
If you look through the forum some, there are at least a few european sources here, just requires so ... |
18-10-2023 at 09:00
by: Dr.Bob |
my crackpot theory of brominations in acetic acid
I have to agree that this looks like a radical reaction to me as well, not that I am any expert, but ... |
18-10-2023 at 08:58
by: Dr.Bob |
Heating mantle power rating
For heating organic solvents, which have a lower heat capacity, lower wattages are fine, especially ... |
16-10-2023 at 14:47
by: Dr.Bob |
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